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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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09-10-2008, 12:46 AM | #1 |
Nissanaholic!
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Not a Z or a 240, but HELP! Nissan XTerra.
Help me diagnose a problem
I can't figure this bitch out. Engine misfire. 2000 Exterra 3.3L Not getting a good signal to injector #3. Checked specs of injector. Pass. Checked output of injector wire w/ noids. Fail. - real intermittent. maybe only a pulse per 2 seconds or so. - rev up = better signal Checked resistance of wiring. Pass. Backprobed ECU and connected to noids. Fail. So the ECU is sending out a **** signal to injectoe #3. What gives? I also took a look at the ignition control module in the distributor. Maybe a little arcing going on in there. But the question is, could a faulty ignition control module cause it to misfire only in one cylinder. I totally don't remember what I learned. Thanks guys :P I love you. |
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09-10-2008, 01:25 AM | #2 |
Zilvia Junkie
Join Date: May 2003
Location: San Francisco, CA
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hmmm check the FSM? how many miles on the xterra? do you use cheap gas ? maybe try changing Fuel Filter see if it gets better fuel flow? or regulator problems? fuel pump problem?
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09-10-2008, 03:43 AM | #3 |
Nissanaholic!
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Its the actual electrical signal to the inkector that's at fault. Not the mechanics of the injector.
I really need your help on this one fellas. Cars been at my shop for a while already. |
09-10-2008, 03:45 AM | #4 |
Post Whore!
Join Date: Dec 2002
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Hi John... :-)
SOunds like a bad ground signal on the injector harness. could be efi harness or engine ground. Hit me up so we can skeet all over.
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