Power Enrichment Table /rpm
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Joined: Mar 2004
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From: Fat Chance Hotel
Power Enrichment Table /rpm I was looking at some logs when I noticed that under a certain situation my LTFT's go as low as -12 . This occurs under part throttle/light load as the map values increase relative to the increase in throttle ~2500rpms.
Do the settings in the PE Modifer/RPM table have effect here? I'm trying to figure out why the PCM thinks it should be adding so much fuel, but then backing it off.
Do the settings in the PE Modifer/RPM table have effect here? I'm trying to figure out why the PCM thinks it should be adding so much fuel, but then backing it off.
Your VE may be too high in that area. PE doesn't have an effect until >60% throttle at those rpms. You can see when you go into PE by monitoring the fuel trim cell or commanded a/f ratio.
Thread Starter
TECH Addict
Joined: Mar 2004
Posts: 2,336
Likes: 0
From: Fat Chance Hotel
I've isolated the problem, but I'm not sure if the MAF calibration is off or if it's just the ve. I'm starting from a modified tune and don't know what the factory values for the MAF were. Does anyone have a stock MAF calibration for comparison?
