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      04-26-2017, 08:25 PM   #1
opihi5
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Evolve Backfire Tune Problems

I have been going back and forth with evolve testing out different files because the initial backfire tune had no effect on my car. After 5 different files i noticed my car had two error codes for the pre-cat o2 sensors.
Evolve said that the o2 sensors were definitely the problem so i cleared the codes and they didn't come back for 200 miles. I tested the same file again with the same o2 sensors and it did not produce an overrun...
Today I replaced them both and using the same file and it still had no overrun, just backfires on downshifts.

If anyone has had a similar issue please chime in.
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my car is fully catless*
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      04-26-2017, 09:13 PM   #2
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I have the same tune and Catless. I don't get any backfires like I have seen in some videos.
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      04-26-2017, 09:57 PM   #3
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Quote:
Originally Posted by Block23232 View Post
I have the same tune and Catless. I don't get any backfires like I have seen in some videos.
I requested for them to make it very similar to what gintani's tune does and they sent me the last file saying it should be very similar if not better...but it still did not overrun.

I'm sure that there is a small error somewhere because there are videos of a few e9x overrunning with this tune.
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