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Fuel Injector - Diesel Fuel




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Jun 26, 2013 by whtsthislif4 | Posted in Maintenance & Repairs

technician needing help with diagnosing a misfire problem 99 GMC Denali/Yukon?

Ok I have a 99 GMC Denali/ Yukon. 5.7L Vortec Engine. I've scanned it. Has a po300 Misfire code. I checked the Misfire counter on the scanner, And Cyl 2 & 8 are misfiring at the samerate and Number. Checked spark with an inline spark tester. It has spark on 2&8. Checked for spark with plug out, Attached to wire and grounded. Has spark. Checked for compression. they both have 150 to 180 Psi. Since it's a Vortec I can't use noid lights to check for pulse at the injectors because the fuel regulator,Controller,lines, and injectors are all under the Plenum.. My boss said to replace the fuel pressure regulator. Because of the hits on Identafix. So I did. Still has same problem. Replaced fuel injector controller and injectors/Spider. Same freakin problem. I don't want to blame the ECM. I felt for sure the spider would fix it! Because all the other elements needed to fire a cylinder were there. Any Ideas, Or trouble shooting procedures would be very helpful.

mdk68gto, ase certified m tech | Jun 26, 2013
a random misfire can be from many things. too much or too little air flow. a valve that is not seating well. your results from the compression test do have a bit if a variance. 10% is the spec that I have heard. you are not much over that but still over. it could be that.
John | Jun 26, 2013
Still a problem! Try to figure what they have in common. Have had similar problems with volume and pressure in pumps. Even exhaust restriction. Coldest clyenders. Old school-- what does those plugs look like as for as fuel and burn? Any gas smell in oil? Coils and caps if any with cross over made in. Sensors or dist pickup getting out of range! Vacuum leak? Valve springs.
don r | Jun 26, 2013
Carefully label the spark plug wires, the swap one from a good cylinder with one from a suspect cylinder. See if the problem follows the wire. You're doing just what Mr Goodwrench does, but you aren't charging yourself $100/Hr. So far
Stpaulguy | Jun 26, 2013
Replacing the fuel pressure sensor is pretty far down on the Identifix possibilities list. #1 is to check exhaust backpressure, O2 sensors and fuel trims.
Jun 25, 2013 by kuma | Posted in Maintenance & Repairs

Put deisel In my gas car, fixed. Catalytic converters P0420 problem?

Accidentally put deisel in my car like a dumbass. Took it to a shop they told me they would flush the tank and replace my fuel injectors. They did got it back ran fine. I have a toyota celica.. Then the check engine light came on. Took it to autozone to check out the problem. Had p0420 come up. What should I do, what's the problem? I spent $900 on the pricey place I went to, I'm pissed off by them. Yeah in the dumb ass. Need help? I don't want to spend a lot of money. I did research I know I can get some seafoam or some other can and put it in my tank and run for 100 miles but I don't know that would work. I don't know what to do. I don't want to run it anymore, until this light goes away before I fuck anything else up 2003 toyota celica gt. Completely stock nothing is changed inside and out.

Pete M | Jun 25, 2013
Bummer! Go to the link below for a list of the possible causes of and solutions to receiving that code:
Country Boy | Jun 25, 2013
Auto Zone is the worlds worst place to take a *Toyota for engine diagnostics. You ruined the super expensive catalytic converter when you dumped DIESEL fuel in the fuel tank. If you're pissed now wait till you see the price tag for another Toyota catalytic converter. If you had listed the year of your car we could save you a ton of money on a new converter.
thebax2006 | Jun 25, 2013
The code is for the converter not coming up to it's projected threshold. Normally you have to replace the converter with a PO420 code. In your case I would drive it for a couple hundred miles keeping the rpm range at 4,000rpm to try and fry the extra fuel/diesel out of the converter. Erase the code several times if it comes back on while driving the motor at a higher rpm. Try and keep track of how many miles it takes to set the light so you know if it's getting better or staying the same. You can't hurt anything since the converter is saturated already. This isn't the mechanics fault, it's the rest of the damage you caused with the wrong fuel so hope for the best!
tronary | Jun 25, 2013
Don't be a dum bass and get all excited. You could probably have been ok with just draining the tank and filling with gas. The code you got says below efficiency bank one. So I assume you have dual exhaust and two converters. Judt drive normally and let the gas do it's job and flush out the tank and hopefully the converter. I would put injector cleaner, buy the cheap stuff it works quite well, in with every tank fill for perhaps three tanks. The converter should get back to normal after a while, if not it is no great problem as long as you aren't due for an emission check. If the dtc light stays on go back in about a month and have the code pulled again. If all is well it wll turn off the light.
Kash | Jun 26, 2013
The error code p0420 may arise due to one of following reason: 1. Leaded fuel used instead of unleaded 2. Faulty downstream O2 sensor 3. Damaged wiring of O2 sensor 4. Engine Coolant temperature not working properly 5. Exhaust leak from manifold, catalytic, muffler 6. Oil Contamination Check for the faults in your ride which are listed and take necessary step to either repair or replace the fault.

Fuel Injector - Bookshelf


176 pages

How to Tune & Modify Ford Fuel Injection

Creator: Ben Watson | Technology & Engineering - 1998

With detailed text and over 200 photos, diagrams, illustrations, and charts, this guide includes information on how Ford Fuel injection works and the basics of automotive electronics.

Publisher: Motorbooks

About this book
Watson makes the Ford fuel injection system easy to understand, and shows you how to get the most out of your EEC IVs helpful self-diagnostic system. Your guide to understanding, troubleshooting, repairing, tuning, and modifying fuel-injected Ford engines. Detailed text and 250 illustrations provide step-by-step information for testing and tuning engines for peak performance and efficiency. This updated edition contains information on the new On-Board Diagnostics II system. 2nd ed.



159 pages

Fuel Injection Handbook

Creator: Adam Wade | Transportation - 2004

Russ Collins, motorcycle drag racing legend, inductee into the Motorcycle Hall of Fame, and owner of RC Engineering in Torrance, California, has this to say about fuel injectors: "There are as many different injectors out there as there are ...

Publisher: Motorbooks

About this book
The popular how-to series with full color photography, fresh designs, step-by-step instructions, more practical and easy-to-use content, and written by the top experts in the industry. In the mid-1990s, fuel injection was available on only a handful of exotic, high-dollar European motorcycles. Today it is the predominant motorcycle technology. Despite its prevalence, very few motorcyclists understand fuel injection. "Motorcycle Fuel Injection Handbook dissects its mysteries, thoroughly explaining the technology from its origins through its subsequent development and examines ways to modify the technology for optimum performance. Systems from all the major manufacturers are included as are aftermarket products. "Motorcycle Fuel Injection Handbook discusses remapping tips, racing bike systems, and future development. It is the ultimate resource for those who want to master the most important motorcycle technology of our time.



37 pages

Effect of fuel injector type on performance and emissions of reverse-flow combustor

Creator: Carl T. Norgren | Technology & Engineering - 1981


Diesel Fuel Injectors Directory

Fuel injection - Wikipedia, the free encyclopedia
Fuel injection is a system for admitting fuel into an internal combustion engine. It has become the primary fuel delivery system used in automotive engines, having ...

How Fuel Injection Systems Work - HowStuffWorks
The last carburetor-equipped car came off the assembly line in 1990. Since then, fuel injectors have been the primary means of getting gasoline into the engine ...

Electronic Fuel Injection Leader - FAST® - Fuel Air Spark ...
FAST is the leading developer of electronic fuel injection systems, EFI components, intake manifolds, tuning tools for high performance and street applications

Fuel Injector Whse - OEM Fuel Injectors
Fuel injectors from Fuel Injector Warehouse, a member of the Car Parts Warehouse Team. Fuel Injectors Whse supplies fuel injectors for gas and diesel applications.

MSD Performance
Your performance electronic source for ignitions, coils, distributors, timing controls, spark plug wires, starters and electronic fuel injection.


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Editor's picks

  • Delphi

    Delphi FJ10062 Fuel Injector

    Automotive Parts and Accessories (Delphi)
    List Price: $262.80

    Mulitifuel capability
    Improved sealing materials, providing cold sealing to -40 degrees C for better cold starts
    Internal seal rings protected from fuel exposure, minimizing in-use "sticking" for longer-lasting durability
    Accurate, tightly controlled fuel spray pattern for more efficient fuel vaporization, reducing unburned hydrocarbon emissions


  • AUS INJECTION INC.

    AUS Injection MP-10898 Remanufactured Fuel Injector - Ford

    Automotive Parts and Accessories (AUS INJECTION INC.)
    List Price: $46.48
    Price: $31.42
    You Save: $15.06 (32%)

    All injectors are backed by a 12 month 12,000 mile warranty
    All units are 100% factory tested before packaging
    All injectors are lubricated prior to packaging ensuring a trouble free installation
    Clean injectors provide better gas milage and increase overall performance
    Remanufactured In the USA


  • ACDelco

    ACDelco 217-3028 GM Original Equipment Fuel Injector Kit with Bracket

    Automotive Parts and Accessories (ACDelco)
    List Price: $625.74
    Price: $254.09
    You Save: $371.65 (59%)

    Strict quality control for trouble-free performance
    12-month/12,000-Mile Limited Warranty
    ACDelco is an Original Equipment (OE) supplier and has the experience engineering and manufacturing components that achieve the highest quality standards required by vehicle manufacturers


  • Chevron

    Chevron 65740 Techron Concentrate Plus Fuel System Cleaner - 20 oz.

    Automotive Parts and Accessories (Chevron)
    List Price: $15.74
    Price: $9.87
    You Save: $5.87 (37%)

    Reformulated with improved deposit control
    Proven unbeatable at cleaning the entire fuel intake system
    Restores lost power and performance
    One 20 ounce bottle treats up to 20 gallon tank and uses every 3,000 as part of a regular maintenance program
    Cleans and protects against corrosive sulfur deposits that can harm fuel gauge sensors


  • ACDelco

    ACDelco 217-2907 GM Original Equipment Multi-Port Fuel Injector Assembly

    Automotive Parts and Accessories (ACDelco)
    List Price: $72.12
    Price: $30.19
    You Save: $41.93 (58%)

    Strict quality control for trouble-free performance
    ACDelco is an Original Equipment (OE) supplier and has the experience engineering and manufacturing components that achieve the highest quality standards required by vehicle manufacturers
    12-month/12,000-Mile Limited Warranty


  • AUS Injection

    AUS Injection MP-10239 Remanufactured Fuel Injector

    Automotive Parts and Accessories (AUS Injection)

    Rating (7 reviews):
    (4.7/5)
    AUS Injection

    Great Re-manufactured injector

    0 5/5 Noisy1 - See all my reviews Verified Purchase(What's this?) This review is from: AUS Injection MP-10239 Remanufactured Fuel Injector (Misc.) Dropped this into the #1 cylinder of my 2000 4Runner this evening. Car is running like a charm. Beats every other price I found by 50%. Was an OEM re-manufacture. Was it even cheaper than sending mine in to get cleaned? Sure was faster. Did the job in under 2 hours. Too easy! 0 Help other customers find the most helpful reviews  Was this review helpful to you? , February 16, 2011

    Not what is pictured

    0 3/5 thebrandon - See all my reviews Verified Purchase(What's this?) This review is from: AUS Injection MP-10239 Remanufactured Fuel Injector (Misc.) The picture is not what you get. The injector does work though. This is not a re-manufactured Toyota injector but it does fit and seems to working properly. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , June 16, 2014

    week later so far so good

    0 5/5 KRISTOPHER HARRIS - See all my reviews Verified Purchase(What's this?) This review is from: AUS Injection MP-10239 Remanufactured Fuel Injector (Misc.) my 99 4runner developed a skip giving A constant po306 code (#2 cylinder) after the normal plugs and plug wire's change out it still developed a skip after i ran it 20 or so miles and cut it off when i started it right back up it skipped on that cylinder.i took a chance on these injectors and they have been in my 4runner a week now and no skip and also picked up 4 miles per gallon fuel milage. i replaced all 6 at $208 i4 extra miles per gallon will pay for that in a month or so. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 26, 2014
    List Price: $46.48
    Clean injectors provide better gas milage and increase overall performance
    All injectors are backed by a 12 month 12,000 mile warranty
    Remanufactured In the USA
    All injectors are lubricated prior to packaging ensuring a trouble free installation
    All units are 100% factory tested before packaging


  • Red Line

    Red Line (60103) Complete SI-1 Fuel System Cleaner - 15 Ounce

    Automotive Parts and Accessories (Red Line)

    Rating (271 reviews):
    (4.4/5)
    Red Line

    Best and most cost-effective product of its type

    Short version:Among all fuel system cleaners I'm aware of, Redline SI-1 contains the highest quantity per dollar (based on manufacturer MSDS) of the critical fuel-system-cleaning compounds known as polyether amines (PEA). Primarily for this reason I believe SI-1 to be the best available and most cost-effective fuel system cleaner product at retail pricing. [...].In my case it has not been necessary to use Redline's recommended quantity of approximately 3 oz per fill-up. The effects of 1 oz per fill-up are indistinguishable in terms of tested results (see my basis for this statement below). This results in an approximate cost of $0.35/tank or less than a tenth of a penny per mile. A full case at this usage rate is enough to treat 180 full tanks of fuel or to last approximately 80,000 miles. (Figures based 15gal/tank, 25-35mpg).Long version:As far as I know, every effective fuel system cleaner on the market uses a class of compounds known... 5/5 Glenn Carpenter (Golden, Colorado) - See all my reviews, July 5, 2009

    Raised my gas mileage 3-4 points

    0 5/5 C. Perluss (Orange County, CA) - See all my reviews, March 18, 2010

    Best and most cost-effective product of its type

    Short version:Among all fuel system cleaners I'm aware of, Redline SI-1 contains the highest quantity per dollar (based on manufacturer MSDS) of the critical fuel-system-cleaning compounds known as polyether amines (PEA). Primarily for this reason I believe SI-1 to be the best available and most cost-effective fuel system cleaner product at retail pricing. At the current price per bottle when bought by the case right here on Amazon ($5.30) it is a bargain (12/15/09 edit: the price here has almost doubled since I wrote this and it is now, unfortunately, far from a bargain).In my case it has not been necessary to use Redline's recommended quantity of approximately 3 oz per fill-up. The effects of 1 oz per fill-up are indistinguishable in terms of tested results (see my basis for this statement below). This results in an approximate cost of $0.35/tank or less than a tenth of a penny per mile. A full case at this usage rate is enough to treat 180 full tanks of... 5/5 Glenn Carpenter (Golden, Colorado) - See all my reviews, January 6, 2009
    List Price: $104.28
    Price: $10.53
    You Save: $93.75 (90%)
    Contains synthetic upper cylinder lubricant
    Cleans to nearly 100 percent efficiency in one treatment
    Reduces need for octane by up to two points
    Safe for continual use
    Use one bottle per tank for most effective treatment of neglected vehicle


  • 3M

    3M 39089 Fuel System Tune-Up Kit

    Automotive Parts and Accessories (3M)
    List Price: $73.99
    Price: $23.99
    You Save: $50.00 (68%)

    Professional formula
    Requires a few simple hand-tools
    Improves fuel economy, acceleration and performance
    As easy to perform as an oil change


  • STP

    STP 78577 Super Concentrated Fuel Injector Cleaner - 5.25 oz., (Pack of 2)

    Automotive Parts and Accessories (STP)

    Rating (37 reviews):
    (4.6/5)
    STP

    Restored Lost Power!

    0 5/5 Car Guy - See all my reviews Verified Purchase(What's this?) This review is from: STP 78577 Super Concentrated Fuel Injector Cleaner - 5.25 oz., (Pack of 2) (Automotive) I added this to a full tank of gas in my Ford 4.0 ohv, and within 20 miles or so I could tell that there was an increase in power that I had lost since I had last added any kind of fuel treatment which was about 5,000 miles ago. If your vehicle is feeling a little sluggish I would try some of this injector cleaner. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , January 25, 2014

    Keeps my car clean

    0 5/5 castle - See all my reviews Verified Purchase(What's this?) This review is from: STP 78577 Super Concentrated Fuel Injector Cleaner - 5.25 oz., (Pack of 2) (Automotive) I signed up for auto renewal because this works so well. i use it in all 3 of my cars to keep them running smooth 0 Help other customers find the most helpful reviews  Was this review helpful to you? , June 7, 2013

    Lifesaver

    0 5/5 Alin S. Steglinski (20 Mins NW of Chicago, IL) - See all my reviews, January 3, 2013
    List Price: $5.88
    Safe for all gasoline engines
    Contains concentrated detergents that help dissolve and remove harmful carbon, gum and varnish deposits on fuel injectors
    Helps restore lost power and acceleration
    Helps save gas by cleaning fuel injectors and restoring lost fuel efficiency
    Helps smooth rough idle and eliminate tough starts


  • AUS INJECTION INC.

    AUS Injection MP-10851 Remanufactured Fuel Injector

    Automotive Parts and Accessories (AUS INJECTION INC.)

    Rating (8 reviews):
    (4.9/5)
    AUS INJECTION INC.

    It smoothed it out.

    I stuck this in place of the injector from #4 cylinder on my 1996 Mercury Villager. It was packed plenty secure and had a warning I wish had come with another injector I purchased a couple years ago from another website. It's in #5 right now. The o-ring should be lubricated and the injector should go into the fuel rail with only a modest push and twist. The o-ring on a earlier purchase was the correct diameter but was too fat. I noticed the difference but tried to use it anyway since I figured the rebuilder must know what they're doing. If not for good plug wires I would have had an engine fire due to a fuel leak after a few hours of run time. If the injector don't go in nicely then something ain't right.If you are wondering if you have a bad injector then maybe you need a mechanic's stethoscope for around $12.00 it is a must have. With the engine running and probing against the retainer cap, a dead injector has a hun hun hun sound and one that's working goes thick... 5/5 John M. Majkrzak - See all my reviews, August 24, 2012

    2000 Nissan Xterra 3.3L - Replaced All Six Injectors

    Product functions very well. A little elaboration here may save you some grief - read on. Admittedly, I did not heed the rebuilders recommendation to replace all six injectors. They stated the short duration on times associated with idle and low RPM's would suffer because the old dirty injectors would not perform as well as the rebuilt injectors which I interpreted as just an attempt to sell more product. I originally had one known bad injector (cyl 4) and decided to replace only the three even numbered injectors due to their location beneath the upper intake (fair bit of work to get to...) and the attractive price-point of these particular injectors as compared to new replacements. I ended up with essentially the same symptom (misfire) only now it was random and not specific to cylinder 4 - just as the rebuilder had warned would happen!!! I subsequently purchased and replaced the other three for the odd cylinders and everything worked - smooth idle, no misfiring and no more DTC's or... 5/5 JW - See all my reviews Verified Purchase(What's this?) This review is from: AUS Injection MP-10851 Remanufactured Fuel Injector (Misc.) Product functions very well. A little elaboration here may save you some grief - read on. Admittedly, I did not heed the rebuilders recommendation to replace all six injectors. They stated the short duration on times associated with idle and low RPM's would suffer because the old dirty injectors would not perform as well as the rebuilt injectors which I interpreted as just an attempt to sell more product. I originally had one known bad injector (cyl 4) and decided to replace only the three even numbered injectors due to their location beneath the upper intake (fair bit of work to get to...) and the attractive price-point of these particular injectors as compared to new replacements. I ended up with essentially the same symptom (misfire) only now it was random and not specific to cylinder 4 - just as the rebuilder had warned would happen!!! I subsequently purchased and replaced the other three for the odd cylinders and everything worked - smooth idle, no misfiring and no more DTC's or... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , February 16, 2014

    Five Stars

    0 5/5 Santos reyes - See all my reviews Verified Purchase(What's this?) This review is from: AUS Injection MP-10851 Remanufactured Fuel Injector (Misc.) Very good 0 Help other customers find the most helpful reviews  Was this review helpful to you? , August 17, 2014
    List Price: $46.48
    All units are 100% factory tested before packaging
    Remanufactured In the USA
    All injectors are lubricated prior to packaging ensuring a trouble free installation
    Clean injectors provide better gas milage and increase overall performance
    All injectors are backed by a 12 month 12,000 mile warranty


Diesel Fuel Injectors


Fuel Injector - News


If you recall in Part 1 of this series it was mentioned that the weight of the fuel would impact the delivered air/fuel ratio for a given injector opening time. This is important when dealing with race gasoline or a calibration that runs on both race ...
GM High-Tech Performance Magazine - Jan 17, 2014

The secret behind this impressive efficiency is that the all-aluminium engine uses Volvo's i-Art injector system to carefully monitor the amount of fuel needed for every combustion cycle, resulting in a big drop in consumption and emissions. Out on the ...
AutoExpress - Jan 18, 2014

Nissan details Canadian-exclusive Micra, announces April release According to Nissan, the tiny powerplant features a host of cutting-edge technologies, including a dual fuel injector system that allows a wider injection of fuel compared to traditional single injector systems. The smaller nozzles deliver a spray ...
Canadian Manufacturing - Jan 18, 2014

Wiring Harness Fuel Injector Connector 11. One of the connectors that needed to be replaced is our fuel injector connector. We plan on using the standard LS1 injectors (connector on right). If you are using the truck injectors (connector on left), you ...
GM High-Tech Performance Magazine - Jan 16, 2014

Another choice is that of bank versus sequential firing of the fuel injectors. In bank mode (also called batch-fire mode), a batch of four injectors—assuming an eight-cylinder engine—fire at the same time. Typically, each batch consists of the ...
Vette Magazine - Jan 15, 2014


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A bright green Ford Mustang Funny Car with bright yellow panels that recalls the early days of Funny Cars before the NHRA had a Funny Car class. To make extra bucks the guys would replace the two big 4 barrel carburetors on their A/FX cars with fuel injectors and go match racing at drag strips across America. It was some of the most exciting drag racing ever and unlike today's Funny Cars if you drove a Ford you had a Ford engine under the hood. This one is powered by one of the "Baddest" engines to ever run the 1/4 mile. A 427 Ford SOHC semi-hemi. This design is what happens when you let old hippies design race cars.
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Wal Phillips Fuel Injectors were the tuners delight in the 1950s and 1960s.
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A bright green Ford Mustang Funny Car with bright yellow panels that recalls the early days of Funny Cars before the NHRA had a Funny Car class. To make extra bucks the guys would replace the two big 4 barrel carburetors on their A/FX cars with fuel injectors and go match racing at drag strips across America. It was some of the most exciting drag racing ever and unlike today's Funny Cars if you drove a Ford you had a Ford engine under the hood. This one is powered by one of the "Baddest" engines to ever run the 1/4 mile. A 427 Ford SOHC semi-hemi. This design is what happens when you let old hippies design race cars.
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A bright green Ford Mustang Funny Car with bright yellow panels that recalls the early days of Funny Cars before the NHRA had a Funny Car class. To make extra bucks the guys would replace the two big 4 barrel carburetors on their A/FX cars with fuel injectors and go match racing at drag strips across America. It was some of the most exciting drag racing ever and unlike today's Funny Cars if you drove a Ford you had a Ford engine under the hood. This one is powered by one of the "Baddest" engines to ever run the 1/4 mile. A 427 Ford SOHC semi-hemi. This design is what happens when you let old hippies design race cars.
Price: $$50.95

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