got 4 codes in my 00 s80 t6.

P0102
P0121
P0156
P1159

I got what the scanner tells me but im still lost. I thought P0156 was the rear passenger side o2 sensor but it was replaced and cleared and it keeps coming back. The other 3 got me stumped. Anyone? tech?

 

P0102 is a Mass Flow code.
P0121 is a throttle body code.
P0156 is a rear bank 2 sensor.
P1159 not sure my book says fuel stepper motor.

 

So I have to replace the MAF? And the Throttle Body (my scanner says TPS?), and what about the o2 sensor, I replaced sensor 2 bank 2 (which if I remember correctly you told me was the passenger side after-cat sensor.

And fuel stepper motor???

 

Clear the Mass flow code.
Try to get only the TPS code to come bad and then try to get the Dealer to do something.
Remember the throttle bodys are warrantied for 10 Years 200,000 miles.

Bank 2 sensor 2 is the after cat drivers side sensor. Bank 1 is cyl 1.2.3 bank 2 is 4.5.6

 

Oh. Hmm okay i'll have to crawl under there and double check what side o2 sensor I replaced. IF its on the right side, what can I do?

Cleared all the codes, o2 came back right away, i'll see how long it takes for the MAF/TPS/Fuel Stepper(?) codes to come back.

And I didn't know the Throttle Bodys were warrantied that long, wasn't there a recal put out on them?

 

Also, your not too sure what would be tripping the P1159? This isnt the first time that code was thrown on this car.

 

Yes there was a recall.
The 1159 might also be a throttle body code as well.

If you replaced the right side then you would need to replace the left side one now.
If you had replaced the left side one not to sure maybe the front one is bad throwing the rear sensor code.

 

BAH! It was the passenger side that was replaced. That sucks.

 

Sorry but now the other one needs replacing.

 

Yeah I gathered that much

Well now I gotta find a ****ing 22mm open end wrench

 

7/8's works just as fine.

 

Damn, I was lost with out these forums!!!

Well I replaced the CORRECT o2 sensor this time (so both rear o2's are brand new) and it still throwing the code. I cleared it with a scanner (twice) and it came back both times after about 2 miles.. Any ideas?

 

Sorry to say maybe the front ones as well.
The fronts can throw the rear codes as well.
I hate messing with these cars and O2 sensors.

Again sorry. Sometimes they can be a nightmare.

I was lost with out the site as well!!!

 

is there no way to test an o2 sensor? i will be mad as hell if i waste all that money on a new o2 sensor (plus the work itself) to find out its not that!!

 

Does your scanner read realtime?
If so watch them and make sure they are sweeping.

 

Ummm, I dont think so... =/

 

You might want to try to find someone that can read the realtime and watch the sensors.

 

k its still now fixed, but now I got a P1111 too?

 

HUMMM you lost me on that code.
P codes I usually don't deal with at all.

 

**** =/

This damn car is a ticking time-bomb