AFR Rich after tt custom tune
Evolving Member
Joined: Feb 2004
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When you are in OLF the UTEC does not use the O2 sensor for any feedback. Which is why you were running so rich past 25%.
Thanks,
Jermaine
OPEN LOOP - meaning the ecu does not use a feedback variable. i.e. O2 Sensor
Thanks,
Jermaine
OPEN LOOP - meaning the ecu does not use a feedback variable. i.e. O2 Sensor
Evolving Member
Joined: Feb 2004
Posts: 184
Likes: 0
Originally Posted by sgplancer
Jermaine
I had a 15 minute road tune after the dyno tune. This is when the change to the OLF went from the factory setting to 25 %. Mark tuned out the stumble from CLF to OLF, but left me with a gas guzzling hog. All is well now, but at the time......
I had a 15 minute road tune after the dyno tune. This is when the change to the OLF went from the factory setting to 25 %. Mark tuned out the stumble from CLF to OLF, but left me with a gas guzzling hog. All is well now, but at the time......
Changing your OLF crossover point does not fix the stumble it just makes you drive in OLF All the time.
Originally Posted by Imprezd
Changing your OLF crossover point does not fix the stumble it just makes you drive in OLF All the time.
I figured that out after the tune. If I was watching Mark continously I would have seen the error, and made a comment at that time. Thanks for the information though!
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