rich between shifts - normal ?
#1
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rich between shifts - normal ?
normal driving and normal slow shifts (mainly on vacuum, sometimes on slight boost) afr richens from high 14's to low 13's and sometimes even 12's. after I sift and release clutch pedal, then afr recovers to normal cruising ratio
I would consider it normal if I'd have vta bov, but I have oem metal dv, so is such rich dip still normal between shifts ?
I would consider it normal if I'd have vta bov, but I have oem metal dv, so is such rich dip still normal between shifts ?
#4
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Same thing with my car (recirc'ed Synapse BOV before anyone asks). I'm assuming it's just the injectors continuing to spray for a split second after you lift off the throttle. I did toy around with some of the advanced fuel control maps in the past to try and fix it but never really made any solid progress.
#6
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I have this problem too. It started after I switched from a Synapse Bov to a crushed metal oem one. I think it has to do with injector lag and the fact the the synapse running recirculated stays open at idle letting in air to lean out the mixture. Now that the Ix diverter valve is in, it stays closed at idle, causing the car to run richer between shifts. I need a retune..lol
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