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When I start from a stop is good until 1500 rpms, then wbo2 goes lean and hesitates, and its good after it gets to 2000. When I put it in open loop there's no hesitation and it drives smooth. I can hold it at 1700 rpm's in any gear and the wbo2 goes lean and nothing I do in VE helps. It drives great in open loop bc of the wideband tuning but the closed loop is so much more fuel efficient. L31, mild cam, no egr, 7427. What does the pcm do in open loop?
Acceleration Enrichment - (AE) is similar to carburetor pump shot.
Power Enrichment - (PE) is similar to the back barrels of the 4 barrel carburetor opening up.
Have you adjusted the AE and PE tables? The L31 will "Wake Up" with correct amount of AE & PE programming.
dave w
I raised AE TPS and it helped slightly, AE MAP comes in to late to make a difference but when it does it comes alive. Which PE table should I work with? PE delay is set to 0 in scalars. Thanks and Thank you veterans. Jimmy