Bob’s Cobb

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01-16-2020 | 08:31 PM

#46

ClassJ

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Joined: Aug 2002

Posts: 1,125

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From: Northern NJ

Quote:

Originally Posted by 911.

That just means that they wont turn off rear O2 sensors... Nothing to do with older maps. Unless all the older Maps turned that off and no one was aware?

They may have had to turn them off on the older tune to not trip a CEL with the hotter tune.

Or perhaps the older tune was rich and hurting CAT’s?

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01-16-2020 | 08:39 PM

#47

911.

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Joined: Aug 2019

Posts: 702

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Quote:

Originally Posted by ClassJ

They may have had to turn them off on the older tune to not trip a CEL with the hotter tune.

Or perhaps the older tune was rich and hurting CAT’s?

Possibly, I don't recall reading people have issues with their runes tripping CEL's, it was the reverse actually, would go catless and then tune to turn off the post cat monitors.

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