So every 10-50 miles i will get a cel. [:@] comes on just cruising. and it all started after i replaced my maf. Do to the car not performing as well. i also replaced my ects and cleaned my its. i put a test pipe in last weekend but have driven with it for 200 miles no problem. and i did the nonfouler mod. any ideas? which o2 sensor is this? is it the one in the back? should i just replace both? the car has 58k on it; engine+turbo replaced at 44k. think the 02 sensor would **** the bed that quickly after putting a tp in?
16524 - Oxygen (Lambda) Sensor B1 S2: No Activity
P0140 - 35-10 - - - Intermittent
17522 - Oxygen (Lambda) Sensor; B1 S2: Internal Resistance too High
P1114 - 35-10 - - - Intermittent
Readiness: 0000 1001
00787 - Temperature Sensor in Fresh Air intake duct (G89)
30-10 - Open or Short to Plus - Intermittent

 

That's the rear O2 sensor.

 

are you sure other posts have said it was the precat sensor. need alittle help before i go buy a 130 part want to make sure it is the right one.

 

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I would make sure the o2 sensors arent loose before you go changing them i had a similar problem where there was no code for a while turned out that they where just loose.

 

cool

 

thanks forcefedaudi any help is good help, thanks for the reply, i appreciate it. i will double check that [sm=goodidea.gif]

 

B1 S1 is front sensor.
B1 S2 is rear sensor.

 

POST CAT 02 sensor on the fritz.. REAR 02.. POST CAT.. clarification enough..

also your Fresh Air sensor is messed.. the one under the pollen filter..

 

you guys are awesome thanks