Subject	Misfire, stuttering issues
Posted by	Carlos Ramirez on June 18, 2013 at 9:14 AM
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Message	Hi guys I am trying to trace down a misfire, stuttering issue I have seemed to developed. Here are some of the things I have done so far 1. Ohmd all the injectors 2. Ohmd the coil packs 3. replaced all the coil pack connector plugs 4. Replaced the PTU 5. Check for power on the coil packs 6. Replaced the plugs (using generic cooper plugs ATM) I am thinking I have either a bad ecu or a grounding issue, or something else is going on. Another idea was maybe I have a flakey ECU.. Any feedback would help. Can anyone confirm all the ECU and chassis grounding points?
Follow Ups	Misfire, stuttering issues - Carlos Ramirez 09:14:37 06/18/13 Vacuum/boost leaks? Can you explain your misfire in greater - TriniTT 09:17:31 06/18/13 Misfire all the time or under certain conditions? - TTZ2NV(EPTmotorsports) 10:09:42 06/18/13 Re: Misfire, stuttering issues - Carlos Ramirez 10:29:55 06/18/13 Injector? (n/m) - ChaseGrayTT 10:51:41 06/18/13 maybe? But they ohmd out correctly (n/m) - Carlos Ramirez 11:04:07 06/18/13 Could be clogged. - ChaseGrayTT 13:45:54 06/18/13 Which plugs and how many miles on them? (n/m) - MixManMash 10:49:02 06/18/13 had NGK BKR7eix in there put some ZFR7f-11 in for now - Carlos Ramirez 11:05:42 06/18/13 gap and boost level ? (n/m) - ZWolf 11:22:37 06/18/13 I'd swap in and test with a known good CAS if you haven't .. (n/m) - SniPer (SR-71) 12:06:30 06/18/13 don't have one :-) I have thought of that - Carlos Ramirez 12:23:09 06/18/13 CAS connector clean & seated correctly? (n/m) - vorpalZ 15:44:14 06/18/13 Sounds like a connector issue, I'd check maf/temp sensor. (n/m) - TriniTT 13:20:10 06/18/13 ^this. I fought a random misfire for a while - Lumpydonut 14:17:39 06/18/13 these are all helpful hints - 300ZMang 18:52:47 06/18/13 update - Carlos Ramirez 21:34:19 06/18/13 I have a few spare parts I can let you borrow - 90GoldZ 00:50:08 06/19/13 thank you sent an email (n/m) - Carlos Ramirez 14:25:24 06/19/13 updated 6-20 - Carlos Ramirez 20:14:34 06/20/13
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