supak1111

Just updated to Tephra V7 94170715 and having some issues:

- High COLD engine idle
FIXED by lowering upper ISCV Demand CTS Adder #1**

- Engine stall after pressing clutch in and letting go of accelerator

- Really RICH mixture anytime I let go of the accelerator

Rick mixture (in 10's) after letting go of accelerator will

Can anyone give me any ides what could be causing a RICH mixture after closed throttle?

How do you tune for Deceleration?

I'm 90% sure after the throttle is closed mixture should be LEAN not RICH.
I'm using a BOV but I still have it recirculated back into the custom intake so this shouldn't be the issue



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Hakke

Take a look at your decel fuel cut tables.

supak1111

Hey Hakke, I don't see a decel fuel cut table in tephra v7,

only see a decal fuel cut delay. Am I missing something or we talking about the same thing?






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Hakke

oh we must have different definitions, i see mine differently

supak1111

Actually they are the same, and all the numbers look the same too.

Only thing thats different is I added an extra table called "Decel fuel cut RESUME RPM" because I though this might be the issue as someone mentioned it in another thread. But after playing around with that one table I realized it isn't the issue at all and you're better off not touching it.

Someone mentioned in another post that its possible that my ecu isn't turning injectors OFF after i let go of the gas, possibly because my TPS isn't adjusted right but it is adjusted. In my openport 2 log I get 100% TPS when I floor the gas paddle and 13.7% without touching it so it seems to spec...

Hakke

Hmm yeah those look right. Are you sure your injector scaling isnt too low? That will definitely cause that. Its fine on throttle tip in?

supak1111

Yea my scaling is fine, I actually currently have it on the leaner side and still every time I let go of the gas after even a slow acceleration my wideband AF goes into 10's 11's for a while.

It should really go into lean because injectors should be OFF after decel


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supak1111

I'm going to check my TPS voltages tomorrow with a multimeter and see if they are in specs too, who knows maybe they aren't and my openport2 logger isn't telling the right numbers???


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mines5

Hello supak111.

Please read this thread.
https://www.evolutionm.net/forums/ec...701715-v7.html

supak1111

will do


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