Anyone had a CEL with catted Downpipe (No tune/piggyback)??

Twisted Tuning said:

Unchecking that "oem/catted downpipe" box simply re-enables the logic check for the rear cat efficiency. Basically undoes what the tune had programmed to deal with the CAT cels.

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absaifan said:

I have a JB4 installed with a Dp, I usually clear my CEL every other day, what I noticed is the car loses power when I do that, for the past week, I havnt cleared the cat CEL, and boy does the car feel stronger.
Correct me if I'm wrong, but clearing the CEL seems to reset the fuel curve from the DME auto learn, right?

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Extreme Power House said:

Car should run the same even with CEL

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absaifan said:

I have a JB4 installed with a Dp, I usually clear my CEL every other day, what I noticed is the car loses power when I do that, for the past week, I havnt cleared the cat CEL, and boy does the car feel stronger.
Correct me if I'm wrong, but clearing the CEL seems to reset the fuel curve from the DME auto learn, right?

Click to expand...

Twisted Tuning said:

deleting the code makes no changes to the ECU adaptive memory. It simply resets the Drive cycles to have the emissions monitors be ready, What you're feeling is pretty much placebo. If you were resetting adaptations, then i would say yes, that will effect it. But youre just deleting a code.

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absaifan said:

Th

Thanks for the response it's probably paranoia then . I need to hit a dyno asap.

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