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View Full Version : How to disable o2 correction above X load?


turboe36
August 1st, 2008, 09:24 PM
SM4 1.07--

As title states. I don't want any o2 correction above 100 kpa... possible? I see light load cutoff and heavy load voltage.. But I don't want it to do anything at all, never mind two targets.

Possible?

turboe36
August 1st, 2008, 09:57 PM
Hmm even worse off is its holding the correction at idle / not recorrecting at idle. Off the throttle, coasting to a stop the injectors are cut so lean AF... therefore it pegs +rich correction. Now its stuck at idle at +rich correction until you drive off.

Seems like this wasn't thought out too well.

RAC
August 2nd, 2008, 02:24 AM
I don't think the closed loop works when the warm up enrichment is on so you could setup the warm up table so anything over 100kpa is set to 1.004.
It practice with my old 1.02 chip it still held onto the correction % and still applied it when on boost even with the warm up table set up as above so i don't know if the newer chips have changed or this is the way it's ment to be.

I found it a pain as any little upset in afr (accel enrichment) just befor getting on boost would cause an odd correction value to be used changing my tuned afr when on boost.

We should be able to get it to not use that stored correction value above 100kpa like you are asking, or use it if we want.

Apart from that i found the clc to work very well.

turboe36
August 2nd, 2008, 09:17 PM
I don't think the closed loop works when the warm up enrichment is on so you could setup the warm up table so anything over 100kpa is set to 1.004.
It practice with my old 1.02 chip it still held onto the correction % and still applied it when on boost even with the warm up table set up as above so i don't know if the newer chips have changed or this is the way it's ment to be.

That is a clever idea! I will try this and report back. Thank you RAC.