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View Full Version : Is this normal for VE tuning



98SS2836
June 22nd, 2006, 01:03 PM
Say part throttle im staying around 14.7 to 1 and if I just punch it it will go to say above 20 to 1. In SD mode does the computer use PE at all even when you return to closed loop SD? Any info appreciated

ringram
June 22nd, 2006, 07:42 PM
You need to make sure you have re-enabled PE mode once you have finished dialing it in. Though it should at worst go to 14.7:1 if you forgot to. Sounds like you have some other issue.

TAQuickness
June 22nd, 2006, 08:43 PM
is this your commanded or actual AFR that's jumping to 20:1? If it's commanded, something is not right in your tune. If it's the actuall, then yes, this can happen, but the tune needs fine tuning.

Teutonic Speedracer
June 23rd, 2006, 08:50 AM
Make sure you don't confuse your Lambdas, EQs, and AFRs! Don't ask me how I know....

98SS2836
June 23rd, 2006, 09:24 AM
its all in the default EQ ratio. I guess its in my tune but I donno Fuel system checks out ok. im going to load back in a stock tune with the maf and see if anything changes.