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Dsm4lyfe12

10+ Year Contributor
502
2
Jun 8, 2010
Minooka, Illinois
My obd port is not working, is there anything that i could directly look at to hunt down the problem?

When i go wot my car backfires bad and feels like its pulling backwards, as soon as i hit boost my afr jumps from 14.7 to 10.0. When it backfires it jumps to 12.8. Hopefully its not detonating... Could a exaust leak cause this, or a boost leak?
It definitley isn't fuel cut
Mods:
Aem wideband,
Prosport boost gauge,
Punishment Fmic,
16g set to 8 pounds,
Stock fuel, untill i get my obd2 port to work for link..i have everything for it but no way to tune it.
 
First i would check the wiring. Pins come lose, get bent and things get disconnected all the time. Did you check the pins in your link cable? Do you have an electrical diagram for your car? Its going to be a pain in the ass..
 
When i go wot my car backfires bad and feels like its pulling backwards, as soon as i hit boost my afr jumps from 14.7 to 10.0. When it backfires it jumps to 12.8. Hopefully its not detonating... Could a exaust leak cause this, or a boost leak?

10 is a bit rich, which makes me suspect that you do have a boost leak. I also suspect that your car isn't "backfiring"; rather, you're so rich that unburnt fuel is reaching the cat and igniting. (Look on the bright side; if I'm correct, then you're shooting flames. Better than hitting VTEC, yo!)

On the other hand, 12.8 is really pushing it.

I can't help on the OBD port, but you need a tune.
 
I found an exaust leak and a boost leak ;). I'm going these and keep you guys updated. My car would be tuned if I could get the obd 2 port to power on, there is no point to put my afpr injectors and fuel pump in if I have no way to tune
 
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