P code expert?? What's the trim "system"?

[bcredliner]

Originally Posted by kevinkay

Thanks.
HATE pulling down the pan over the fuel filter. Can I block the return under the back seat behind the driver?

I changed the 4 cats about 4 days before the car was at a body shop
For 6 weeks (and I don't even know what shop - it was farmed out). Issue started shorty after I got the car back. First time I checked codes when the car returned, there were crazy multiple misfires. I cleared them all, my first thought was maybe the battery went dead and the car had trouble restarting. I HATE thinking like this, but.....my MAF or even my DME could have been swapped out with know problematic ones when the car was out of my possession. Although if you were looking for electronic parts- probably wouldn't take them from a 192k mile car??!!

Doesn't matter where you block it off, can do under hood if easier.

Anything that was swapped out would have to be a part that only causes a problem on bank 2.