Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Codes P0122 & P0452

(2002 Pontiac Montana)
in Spring, TX on May 03, 2009
driving down the road and engine dies, the gas gage goes to empty and get out of fuel light, the computor locks the engine out, dealer replaced alternator, battery, defective pins on back of instrument panel, dealer has a DVR plugged in to monitor for next time, already out 3 tow bills
Displaying 3 answers & 2 comments
Popular Answer
on May 03, 2009
The code P0122 is a Throttle Position 'low' code meaning that the Throttle Position Sensor is telling the computer that the gas pedal is barely pressed, when you are actully giving the car a lot of 'gas'. This can casue a dying problem. You also have a Code P0452, which indicates a fuel tank pressure sensor problem. Since you say that your gas gauge goes to zero a lot, it sounds like your fuel sending unit in the tank is defective. ( common on these vehicles ) or the harness to the sending unit is defective ( also common ) these are 2 areas to check
on March 10, 2010
how to fix toyota engine lights code po452
on June 21, 2010
Have you figured out what was causing your stalling problems. I have the same codes and problems you described. Any help would be appreciated.

Thanks in advance
on June 22, 2010
I replaced the TPS and Fuel unit inside tank, cleaned the wiring connectors and checked wire, still same trouble, Dealer had the van for 9 weeks off and on even had monitoring comp attached when it died. Just wasted good money. Resolved issue with a visit to a Honda Dealer. Just hope whoever got it didn't have it die and cause an accident. This was my wifes buggy, having her is a van that won't let her down is #1 concern. $30,000 could be a small price to pay.
on June 25, 2010
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
We have a 2004 Chevy Aveo5 Hatchback automatic, 1.6L, she goes into first and second gear then revs up and don't go i...
p1309 chassis acceleratior sensor located the part on the car but dont know how to check it and/or dont know its fun...
Didn't find what you were looking for?