Subject	Conditions for lean warm-up
Posted by	BOOZTD 3 on May 15, 2011 at 11:34 PM
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Message	Guys I posted about the car im working on a few posts down in regards to it not firing on cyl 6 at idle, however, I also noticed that this car is extremely lean (over 18:1) when warming up. The car has a new(er) AEM wideband on it.... Typically vacuum leaks will be the major culprit of this, but I am fresh off of a very comprehensive boost leak test, so I know that any leaks (if there) are going to be moderately negligible to warm-up enrichment. The only other thing I can think of is the fuel pressure. I have not yet had a chance to put a gauge on the system (will be doing tomorrow) In discussing this issue with another Z owner, we postulated that the extreme lean condition could attribute the cylinder to not firing Some notes The car has an old school JWT chip The car has a newer walbro 255 pump
Follow Ups	Conditions for lean warm-up - BOOZTD 3 23:34:05 05/15/11 Make sure there are no NA injectors in it - Joe@ZSpeedperformance 01:31:49 05/16/11 The tops of these injectors are all the same brown-ish color (n/m) - BOOZTD 3 13:43:39 05/16/11 Also....i highly doubt its leaking - BOOZTD 3 13:44:46 05/16/11 Check for spark at idle and injector pulse - Joe@ZSpeedperformance 20:31:59 05/16/11 Re: Conditions for lean warm-up - txq45 14:13:11 05/16/11
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