Question about 2001 Pontiac Montana
That could mean quite a few things. Simply put, the engine computer isn't seeing airflow in the exhaust system when it tells the air injection system to turn on. It could mean you have a defective air pump, bank1 or bank2 shutoff valve problem, a vacuum solenoid not turning on, a vacuum leak to the vacuum solenoid, incorrect/missing air injection plumbing. This problem requires the use of a scan tool capable of commanding on the air injection pump, and watching the oxygen sensor data to see where the problem is in the system. I highly recommend using a scan tool capable of bi-directional control, or taking it to a reputable shop capable of diagnosing emission control systems. This code does not tell you what part to replace, but rather where to start your diagnosis.
Posted on Oct 20, 2013
Let me know if this helps. Thx
Posted on Oct 16, 2013
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Yours must have the California emission system. They use a secondary air injection system to help reduce emissions. It could be that the pump has gone bad. Have you tried to reset the code? I've seen cars that had this problem and just to erase the code took care of the check engine light. If that doesn't work, make sure your electrical wires are ok, and plugged in. Check to make sure you have voltage at the plug at the pump motor, you may have to start the car to check it. If there is no power there, then check your fuses and relays.
Posted on Apr 06, 2011
Tips for a great answer:
Apr 09, 2013 | 2007 Ford Fusion I4 SEL Sedan
Aug 29, 2012 | Chevrolet Cars & Trucks
May 27, 2011 | 2006 Ford Focus
Aug 27, 2010 | 2000 Oldsmobile Bravada
May 11, 2010 | 2004 Chevrolet TrailBlazer
Aug 06, 2009 | 2000 Chevrolet S-10
May 28, 2009 | 2004 Buick Rainier
106 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: