Injector Voltage on a 96 ZJ
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Year: 1993
Model: Grand Cherokee
Engine: 4.0
Injector Voltage on a 96 ZJ
Hi, I have a 96zj I am working on with a 5.2 v8 that will not start, Checking the voltage on the injectors I found that I have excellent ground on all the injectors, but while cranking I am only getting 9-10v on the positive side (in my case green wire) on the injector, Is that enough voltage to operate the injector or do I have a pcm/voltage regulator problem. Thanks in advanced for any help,
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Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
Hi, I have a 96zj I am working on with a 5.2 v8 that will not start, Checking the voltage on the injectors I found that I have excellent ground on all the injectors, but while cranking I am only getting 9-10v on the positive side (in my case green wire) on the injector, Is that enough voltage to operate the injector or do I have a pcm/voltage regulator problem. Thanks in advanced for any help,
It also states you should have 11.3 - 15.7 ohms resistance at 68 degrees F.
Dan
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Ya thats what my haynes manual said, it says check for voltage at the injectors, but I am trying to figure out if 9v is a normal reading on the hot side, I am getting 12v ground on all the injectors.
Wait is the green/red wire the one that is the same on all the injectors the ground wire,
Wait is the green/red wire the one that is the same on all the injectors the ground wire,
Last edited by bhfear; 04-15-2010 at 09:25 PM. Reason: just thought of something
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Ya thats what my haynes manual said, it says check for voltage at the injectors, but I am trying to figure out if 9v is a normal reading on the hot side, I am getting 12v ground on all the injectors.
Wait is the green/red wire the one that is the same on all the injectors the ground wire,
Wait is the green/red wire the one that is the same on all the injectors the ground wire,
If you have a green/red wire, (instead of dkg/b) on all injectors that is the voltage supply wire.
Dan
Last edited by ol"blue; 04-15-2010 at 10:07 PM.
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Year: 1993
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Today I replaced the Crank position sensor, Still no start, I checked the fuel pump/asd/and all other relays, they are all good, does anyone know what kind of compression on a guage I should be getting while cranking the engine, and also is there anyway to check the ecu, Also I can hear my fuel pump priming for a few seconds when I turn the key, Also I rented a scan tool, No faults were found.
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