High performance cat and SES light..
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From: montreal, Canada

Originally Posted by Rogue
P0420 is common after a hi flow cat or header installation. You will need an 02 Sim or have the code programmed out.
again.Mike
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From: Westerville, Ohio 2000 Black SSEi

Disconnect your rear 02 sensor and plug the sim into the wire harness. Tuck it up out of the way. You can either leave the rear 02 sensor in and tie the wire out of the way or pull it out and plug the hole.
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From: montreal, Canada

Originally Posted by Rogue
Disconnect your rear 02 sensor and plug the sim into the wire harness. Tuck it up out of the way. You can either leave the rear 02 sensor in and tie the wire out of the way or pull it out and plug the hole.
do i have to protect the sim from under car debris or dust?
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From: Westerville, Ohio 2000 Black SSEi

Wouldn't hurt. I know on my car there is a heat shield around the rear 02 wire to shield it from the exhaust. I think you can just just tuck it up into there.
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From: montreal, Canada

Nice!
i will order the sim as soon as i can.
i have to do a 1500km trip this weekend, is it dangerous for a long ride to run with that code?
i mean is it only a code or i run too rich for real because that the PCM is adjusting ? :?
Mike
( sorry for so many question, i like to learn more about my bonneville
)
i will order the sim as soon as i can.
i have to do a 1500km trip this weekend, is it dangerous for a long ride to run with that code?
i mean is it only a code or i run too rich for real because that the PCM is adjusting ? :?
Mike
( sorry for so many question, i like to learn more about my bonneville
)
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