any advice?

[Stockblacka6]

I am also posting this is Tech talk to see if I can get any more help. Please follow link.

http://www.audizine.com/forum/showthread.php?t=257508

Basically I am trying to get help with some codes thrown by CEL.

Thanks

[GetAwayFromMe]

PO421 Warm up catalyst,Bank 1 Efficiency Below Threshold
PO159 O2 Sensor Cir, Bank 2 Sensor2 Slow response
P2098 Post Catalyst Fuel Trim System to lean Bank 2

The first two codes are for your After cat O2 sensors which you just need to relocate and you should be fine after that. Third code is for a vauume leak. Pressurize your system and look for leaks it's not good to be running lean. Bank 2 is the drivers side.

[Stockblacka6]

PO421 Warm up catalyst,Bank 1 Efficiency Below Threshold
PO159 O2 Sensor Cir, Bank 2 Sensor2 Slow response
P2098 Post Catalyst Fuel Trim System to lean Bank 2

The first two codes are for your After cat O2 sensors which you just need to relocate and you should be fine after that. Third code is for a vauume leak. Pressurize your system and look for leaks it's not good to be running lean. Bank 2 is the drivers side.

thanks for the input but if I had a vacuum leak wouldn't the car run rich rather lean?

[GetAwayFromMe]

iT COULD BE EITHER ONE DEPENDING WHERE THE VACUUM LEAK IS COMMING FROM.

[seadoo4563]

iT COULD BE EITHER ONE DEPENDING WHERE THE VACUUM LEAK IS CUMMING FROM.

I DONT KNOW WHAT WERE YELLING ABOUT!