Question about 1991 Cadillac Eldorado

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Fuel injecters just replced 5 fuel injecters in 3 days they were not working they were 16 ohms when i put them in between 1 and 5 ohms now

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Ya fuel injectors are gone , reistance is too low on em. The solenoid inside injector wont open all the way it them at that point usually causing a misfire

Posted on Apr 10, 2009

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91 ram 50 2.4= 4 fuel injection wires 3 have good power and low ohms the Y/B wire #1 cyl has lower volts and high ohms. Only running on 2,3,4 cylinders #1 not working???


Cut the wire a couple of inches from the plugs. Test resistance from the plugs to the end of the wire. If it is good(0), then run a new wire between the plugs. You don't have to put the wire in the harness.

Jun 28, 2015 | Cars & Trucks

2 Answers

How do i check the injector pump to make sure its working right?


Some models have an external fuel filter that should be replaced also. Otherwise you will have to do a fuel pressure test to see if it supplying enough pressure (even though it's new) and volume.
You could also have an ignition problem that will cause the same symptoms. Good luck, Ray.

Jul 10, 2014 | 1997 Dodge Neon

1 Answer

1999 GMC Jimmy 4.3 gets P0303 (#3 misfire) Changed plugs, cap, rotor, wires. Did not help. Read GM tech bulletin and replaced fuel injection system from SCPI to MFI. Did not work. Checked #3 plug again...


Yes . You need an ohm/ volt meter. First check the injector, at the leads of the injector you should have 11 to 15 ohms. At the injector plug with the ignition on you should have 12 volts at one of the wires. To check for fire at the plug put the meter leads on the plug leads and crank the engine. the voltage should spike. My guess is that you have a bad wire on the #3 injector. All the injectors will have 12 volts with key on. The ECM grounds the injectors according to where the crank/cam sensor is. On your vehicle it fires 2 cylinders at a time. This is why I say you have a bad /broken wire. At the #3 injector plug you can also check for ground to the ECM. Instead of putting both leads to the plug you have to first find the ECM wire, then put the meter leads to that wire and ground on the battery. Again it should spike in ohms

Sep 05, 2011 | 1999 GMC Jimmy

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Fuel line rusted out on my 1988 nissan pathfinder. Can I replace with a flex line? Also need line diameter.... thanks.. 6 cyl.


The line diameter should be 3/8 fuel feed line, and 5/16 fuel return line if the vehicle is fuel injected you must use fuel injection hose and fuel injection clamps. if its got carb. them you dont have to use fuel injection line.

Mar 23, 2010 | 1988 Nissan Pathfinder

2 Answers

Cold days car will start and run for 3 seconds and stall for 20-30 min until it starts and continues to run


The reason is that , the fuel line is out of fuel, so the running for 3 seconds is just the use of the trapped fuel in the injector line, after which it will stop. The solution is to on the ignition by turning the key without starting the ignition. this allows the fuel pump to release enough fuel into the fuel line and the injection system. Allow this for 5- 7 seconds, then start the car. It will run without interruption.

Dec 11, 2009 | 1995 Volvo 850

1 Answer

Code says there is aa miss fire on cylinders 2 and 5 What could be the problem


Misfire is more often than not an indication of the need for a good tune up. before you start replacing fuel injectors etc, do the tune up. Do not buy cheep parts. It is a Ford, use motor craft parts. Or at least autolite plugs. If it call for platinum plugs don't put in the cheap ones. You usually only have to do one tune up every 100000 miles. so make it a good one. Before you tune it up, do the fuel injection cleaning. Clean out the intake behind the black tube. You can look in there and see the black carbon build up. Take some fuel injection cleaner in a spray can and use a soft cloth and reach in and clean that area. IF you can't do induction cleaning, run the car and slowly spray the fuel-injection cleaner while it is running at about 2000 RPM's Then replace your plugs and wires. IF you still have the misfire, and the odds are you won't, you then need to check the coil pack. Ohm out the six packs. This is a waist spark ignition so if you ohm across each set front to back you should get the same reading across the board. I wish I could give you a picture. There are two rows of three studs. you want to ohm between each of the three rows, Hope this helps.

Aug 14, 2009 | 2002 Ford Taurus

2 Answers

Won't start


what about the crankshaft sensor? have you replaced it yet?

Jan 20, 2009 | 1989 Jeep Cherokee

1 Answer

Need the timing marks for a 3.1 td 5 cyl diesel injection pump


isusu engine?? have you looked for a 8mm hole in timing gear that corresponds with a hole on plate behind then lock it in with a bolt ,remove bolt after tightening belt .DONT FORGET THIS ???.....if you cant find anything do it with no timing marks easy --- piston no 1 at tdc valves closed spin pump till fuel comes out of no 1 injector feed and lock it all together,indirect diesel is 6/8 ,,,,,direct injection is 12/16,,,,and turbo is 18/22 btdc

Dec 13, 2008 | 2001 Jeep Grand Cherokee

1 Answer

Engine intermitantly stalls


if this a fuel injected car just check to fuel pressure first.

Oct 24, 2008 | 1994 Pontiac Bonneville

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