1991 niassan 300zx tt idle issues? - Cincy Street Scene
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Old 03-24-2010, 04:29 PM   #1
FAST VINNY
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1991 niassan 300zx tt idle issues?
Car limps at idle. 800 to 1100 rpms. No other issues. Codes check 55. The only light on instrument panel is for "hicus". Another issue. Car runs great, will idle without dieing, not other problems. Coil packs were first thought, but i have no clue how to check. Should i pull and check each plug individually. Could i run a voltage meter over wire to test for inconsistancies? Idfk. Any suggestions are helpful.
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Old 03-24-2010, 04:53 PM   #2
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not familiar with them but i know on the audis when coil packs go bad it usually tells you what cyl is misfiring.
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Old 03-24-2010, 05:31 PM   #3
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Maybe check fuel filter, maybe check your plugs... if it were something electrical it would throw some sort of code.
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Old 03-24-2010, 06:00 PM   #4
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No code, pulled wires found #5 cyl. Dead. Fix, buy coil pack from advanced for 62 bucks. Wait 3 days. Car will hopefully run good. Thanks for recommendations. Will post back when new parts are on.
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Old 03-25-2010, 10:55 PM   #5
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Check the resistance of the injector on cylinder 5 to rule that out. spec is 10-14 ohms.
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Old 03-25-2010, 11:29 PM   #6
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Originally Posted by FAST VINNY View Post
No code, pulled wires found #5 cyl. Dead. Fix, buy coil pack from advanced for 62 bucks. Wait 3 days. Car will hopefully run good. Thanks for recommendations. Will post back when new parts are on.
don't just go buying a coil pack without making sure first. Switch it with a known good one to make sure it's not something else. Could be an ignitor chip, injector, spark plug, who knows.
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Old 03-26-2010, 12:03 AM   #7
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Listen to Eric

Injectors in these things are about as unreliable as it gets.
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Old 03-26-2010, 06:12 PM   #8
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I did switch with #1 cyl. No change. Put new coil on this afternoon. On drive now. Runs great. Thaks for all pointers. It is bother in laws car and i was elected to do the work on it. I dont mind. He buys i install. Will be posting up pics and list of mods in the next week or two. Waiting on the spoiler.
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