Subject	Did you try a balance test?
Posted by	Mongoose on October 31, 2022 at 9:59 PM
	This message has been viewed 177 times.
In Reply To	Idle Misfire, Runs well otherwise posted by matt34533 on October 25, 2022 at 03:22 PM
Message	At idle, after letting it warm up, pull the coil pack electrical connections one at a time. When you pull one, the engine should bog down considerably, and then should recover instantly when you re-plug it in. When you pull one and the idle doesn't change, that's your problem cylinder. I've had your exact symptoms a few times over 17 years of Z ownership. Car would intermittently idle bad, but always ran smoothly at higher RPM. Every time it turned out to be either a failing injector, or a corroded injector connection. You say up front that the injectors are suspect. I think you're right. Good luck! -Jason
Follow Ups	Idle Misfire, Runs well otherwise - matt34533 15:22:57 10/25/22 Re: Idle Misfire, Runs well otherwise - nonstopna 01:09:01 10/26/22 Re: Idle Misfire, Runs well otherwise - Cjw3 07:04:10 10/27/22 How accurate are stock O2 sensors at idle? - Agent X 07:42:49 10/27/22 Re: How accurate are stock O2 sensors at idle? - Cjw3 09:43:06 10/27/22 Did you try a balance test? - Mongoose 21:59:44 10/31/22 Always use real name brand trusted injectors. - Bernie (NoVA) 22:54:10 11/11/22 Also.... - Bernie (NoVA) 01:54:44 11/17/22
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