VAG COM O2 Sensor code questions
#1
04-16-2010, 05:03 AM
VAG COM O2 Sensor code questions
I just went through the nightmare of changing out a cylinder head (1997 2.8L 12V AFC) and all that goes with it and the car is now back together and running great, except the CEL goes on. VAG COM comes up with:
17509 -Oxygen (Lambda) Sensor B1 S1: Voltage too low/Air leak P1101-92-00 - Unknown Error Elaboration
16534 -Oxygen (Lambda) Sensor B2 S1: Malfunction in circuit P0150-95-00 - Unknown Error Elaboration
16514 -Oxygen (Lambda) Sensor B1 S1: Malfunction in circuit P0130-94-00 - Unknown Error Elaboration
17514 -Oxygen (Lambda) Sensor B2 S1: Voltage too low/Air leak P1106-92-00 - Unknown Error Elaboration
Which of the 4 different O2 sensors is it talking about? I'd really prefer not to replace all 4 since they seem to run around $100 each...
Since it seems to take a bit longer for the CEL to turn on after clearing the codes (almost all day today), is the computer just adjusting? The car has been apart since July and is just now being put back into service. Could they just need some run time to come back? Unfortunately, this coincides perfectly with SMOG time or I'd just drive it as is for a while... They will automatically fail you if the CEL comes on.
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Just a side question: how do you reset the service INT1/INT2 counters on the dash? Through VAG COM?
17509 -Oxygen (Lambda) Sensor B1 S1: Voltage too low/Air leak P1101-92-00 - Unknown Error Elaboration
16534 -Oxygen (Lambda) Sensor B2 S1: Malfunction in circuit P0150-95-00 - Unknown Error Elaboration
16514 -Oxygen (Lambda) Sensor B1 S1: Malfunction in circuit P0130-94-00 - Unknown Error Elaboration
17514 -Oxygen (Lambda) Sensor B2 S1: Voltage too low/Air leak P1106-92-00 - Unknown Error Elaboration
Which of the 4 different O2 sensors is it talking about? I'd really prefer not to replace all 4 since they seem to run around $100 each...
Since it seems to take a bit longer for the CEL to turn on after clearing the codes (almost all day today), is the computer just adjusting? The car has been apart since July and is just now being put back into service. Could they just need some run time to come back? Unfortunately, this coincides perfectly with SMOG time or I'd just drive it as is for a while... They will automatically fail you if the CEL comes on.
----
Just a side question: how do you reset the service INT1/INT2 counters on the dash? Through VAG COM?
#2
06-05-2010, 04:47 PM
do I really need a new 02 sensor?
Shortly before I bought my car from a friend, he was making regular visits to get 02 sensors replaced. He got through three of them before I bought the car.
I pulled the engine shroud (plastic bit) on top and found some heat cracked hoses on the intake. You could hear the hiss when running. Replaced them and bye bye 02 CEL.
If you didn't get these errors prior to headswap, chances are good a vac hose got missed or should have been replaced. At least that's how I'd look at it. While two could go bad at once, this reads like you have an air leak, despite being 02 errors. They read like this on mine until they got replaced and then codes got pushed to the rears (s2s) (efficiency? Heater function? dunno)
These are the first two B1,2 are sides, S1, 2 are post cat. I forget which side is which, but it's talking about both fronts.
Here's hopin.
I pulled the engine shroud (plastic bit) on top and found some heat cracked hoses on the intake. You could hear the hiss when running. Replaced them and bye bye 02 CEL.
If you didn't get these errors prior to headswap, chances are good a vac hose got missed or should have been replaced. At least that's how I'd look at it. While two could go bad at once, this reads like you have an air leak, despite being 02 errors. They read like this on mine until they got replaced and then codes got pushed to the rears (s2s) (efficiency? Heater function? dunno)
These are the first two B1,2 are sides, S1, 2 are post cat. I forget which side is which, but it's talking about both fronts.
Here's hopin.
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