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P0150 - O2 Sensor Circuit Malfunction Bank 2 Sensor 1 Possible causes:
Faulty Front Heated Oxygen Sensor Bank 2
Front Heated Oxygen Sensor Bank 2 - harness is open or shorted
Front Heated Oxygen Sensor Bank 2 - faulty electrical connection
Fuel pressure not right
Faulty fuel injectors
Intake leaks
Exhaust leaks
I'd suggest you join VW Vortex forum and post your question under your VW model discussion forum. You have a higher rate of hitting it dead on for your car solutions and how fast you receive suggestions. Just hit the address abive to take you there. Any VW forum will work and not necessarily VW Vortex, I just happen to use them. Please rate any suggestions given in your search for a solution. Thank you.
you can purchase an adapter for the cigarette lighter to prevent this, otherwise hook up another battery to the car while exchaning batt, use booster cables
CODE 89 IS FUEL PRESSURE REGULATOR 1 PERFORMANCE.CODE 642 SENSOR REFERANCE VOLTAGE CIRCUIT "A" LOW.AND CODE 2004 IS ITAKE MANIFOLD RUNNER CONTROL STUCK OPEN.CK FOR BAD OR MISSING VACUUM LINES.IS IT STILL UNDER WARRANTY
Passat 97 need to re-enter code ( 4 ) digit, however it shows the number 2 on the on screen when the radio is turned on.
Help. I need to know the steps to reset. thanks
Both my 97 Passat and my wife's 99 Passat were throwing the same OBD codes you listed.
Both VW's had the same problem. There is no "quick" solution for the problem. I can tell you what I found, what I had to do and how I repaired both vehicles so they no longer throw this OBD error code.
I removed the black plastivc AIR pump and found that three of the six aluminum rivets which hold the AIR pump impeller housing together had rotted off so the case was leaking air. I went to a hardware store with one of the aluminum rivets I had removed from the AIR pump and bought six brass machine screws and brass nuts. I gouged the aluminum rivets out and replaced them with the brass machine screws.
After I had replaced the AIR pump in the VW, I cleared the codes and ran the diagnostics again. It still threw the same codes!!!
Next, I removed the plastic top engine cover from the VW engine (VR6) and located the many air solenoids hidden under the cover. I went to a local NAPA shop and purchased an eight foot length of their smallest gauge neoprene gas line (1/8 inch ID).
I carefully removed each piece of rotted VW vacuum line from the air solenoids and replaced each rotted section with lengths of the new neoprene gas line. I had to follow out each of the old vacuum lines and replace them because they were badly deteriorated. This took about five hours to accomplish.
I replaced the plastic engine cover and connected up my cable from my laptop to the VW's computer port, cleared all of the codes and ran a new scan. This time the scan was clear! Woo Hoo! Apparently, the problem was both the leaking AIR pump and faulty, deteriorated (cheap) Volkswagen vacuum lines.
It was well worth the effort. My driveway has now become a bonafied VW repair shoppe.
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