i have a few questions i could use your guys help with PLEASE!!!

**Blowblackorgetback** · 08-20-2012

ok first of all i have a 2000 gtp with straight exhaust with mufflers and i have bungs welding to the pipe the cat is gone and I'm getting a SES light saying o2 sensor bank 1 sensor 1 from my understanding the bank 1 sensor 2 is normal when running no cat but is the other one going to hurt me?? let me know what you guys think i also have a custom tuned cpm coming from overkill.. so will that pcm eliminate the need for the o2 sensors??? if so ill just wait it out and not worry about getting a new sensor or doing whatever else i may have to do to fix that particular issue

also when the car is idling and i have the ac on the rpms kinda bounce but its only when the ac is on and its not really your normal compressor kicking on and off its more of an actual bounce of the rpm not just a slight bump down on rpm..

and the last thing is when i put the car in park it kind of bounces back and fourth before it actually just quits and stops i think its the motor mounts so what do i need to replace as far as motor mounts and where do you guys recommend getting them? also going from forward to reverse and vise versa you can somewhat feel the motor kind of shift it feels like and if you hit the breaks hard you can feel it somewhat shift forward

thanks in advance guys

**Fivefingerdeathpunch** · 08-20-2012

You still need an o2 sensor no matter what.

The front o2 is needed always, the rear o2 is of no use if you are catless.

So seeing that you have a bank 1 sensor 1 code, you need to fix that.

**Blowblackorgetback** · 08-20-2012

Thanks man appreciate the help and I need the sensor one even with the custom PCM

An also what about the motor mounts ??

**Scottydoggs** · 08-20-2012

pop your hood, then start the car and shift it from park to reverse to drive.( watch the engine) if the engine is moving a lot you need new lower engine and trans mounts.

the pcm. you need to tell overkill to set the pcm to not report the other o2 sensor, the one by the cat. that way the cel light wont come on for that.