Codes after O2 Sensor replacement

[mr_esmit]

Saturday i replaced my front O2 sensor because gas mileage was crap. Vag'd afterwards to verify that everything was Ok and got these codes:

16395 - Bank 1: Camshaft A (Intake): Retard set point not reached (over-advanced)
P0011 - 002 - Lower Limit Exceeded - Intermittent

17536 - Fuel Trim; Bank 1 (mult): System too lean
P1128 - 001 -Upper limit Exceeded - Intermittent

Any clues what this could be? Thanks.

[daghstdrummer]

Saturday i replaced my front O2 sensor because gas mileage was crap. Vag'd afterwards to verify that everything was Ok and got these codes:

16395 - Bank 1: Camshaft A (Intake): Retard set point not reached (over-advanced)
P0011 - 002 - Lower Limit Exceeded - Intermittent

17536 - Fuel Trim; Bank 1 (mult): System too lean
P1128 - 001 -Upper limit Exceeded - Intermittent

Any clues what this could be? Thanks.

16395/P0011/000017 - Bank 1: Camshaft A (Intake): Retard Setpoint not Reached (Over-Advanced)
Possible Symptoms

* Power Loss

Possible Causes

* Camshaft Adjustment Valve 1 (N205) faulty
* Fuel Pump Relay (J17) faulty

Possible Solutions

* Check Camshaft Adjustment Valve 1 (N205)
* Check Fuel Pump Relay (J17)

Special Notes

* When found in Engine: 4.0l W8
o Check TPL 2010059(RoW)
+ Check/Replace Oil Sieve in Timing Case (Camshaft Adjuster)


17536/P1128/004392 - Fuel Trim; Bank 1 (Mult): System too Lean
Possible Symptoms

* Malfunction Indicator Light (MIL) active

Possible Causes

* Mass Air Flow (MAF) Sensor faulty
* Oxygen Sensor Control faulty
o Oxygen Sensor(s) faulty
* Fuel Injector(s) faulty

Possible Solutions

* Check Mass Air Flow (MAF) Sensor
* Check Oxygen Sensor Control
o Check Oxygen Sensor(s)
* Check Fuel Injector(s)

Special Notes

* Additional Information on Fuel Trim



I would check your maf first before the injectors since u changed your o2's

[daghstdrummer]

wiki.ross-tech.com is a great site to see what your fault codes mean.. i used it when i had the 17536 code it was my maf after i changed the o2's and all.. injectors can get expensive

[mr_esmit]

Thanks for pointing me in the right direction.

I've been looking at some threads on here regarding the camshaft chain adjustment (tensioner) valve. I see the mechanical part works with oil pressure. Any body think that if i seafoam my car & change oil the ticking might go away? How much does the valve/tensioner cost??

[daghstdrummer]

the ticking might go away with seafoam treatment. as far as the valve tensioner i believe ecstuning.com will probably have it u can check there... shouldn't be too much they are decent with pricing.

[mr_esmit]

16395/P0011/000017 - Bank 1: Camshaft A (Intake): Retard Setpoint not Reached (Over-Advanced)
Possible Symptoms

* Power Loss

Possible Causes

* Camshaft Adjustment Valve 1 (N205) faulty
* Fuel Pump Relay (J17) faulty

Possible Solutions

* Check Camshaft Adjustment Valve 1 (N205)
* Check Fuel Pump Relay (J17)

Special Notes

* When found in Engine: 4.0l W8
o Check TPL 2010059(RoW)
+ Check/Replace Oil Sieve in Timing Case (Camshaft Adjuster)


17536/P1128/004392 - Fuel Trim; Bank 1 (Mult): System too Lean
Possible Symptoms

* Malfunction Indicator Light (MIL) active

Possible Causes

* Mass Air Flow (MAF) Sensor faulty
* Oxygen Sensor Control faulty
o Oxygen Sensor(s) faulty
* Fuel Injector(s) faulty

Possible Solutions

* Check Mass Air Flow (MAF) Sensor
* Check Oxygen Sensor Control
o Check Oxygen Sensor(s)
* Check Fuel Injector(s)

Special Notes

* Additional Information on Fuel Trim



I would check your maf first before the injectors since u changed your o2's

Actually, I only changed the front sensor (bank 1). Do you think I might have to change the rear one also??