I think mass air sensor is bad.could a bad o2 sensor be the real problem

Asked by Jul 07, 2016 at 11:17 PM about the 2000 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

2 Answers

223,035

hard to say without the 4 digit codes and some diagnostic work. I hate replacing parts just because. Have the car scanned for the codes, your local auto parts store will do it for free in most cases. post the codes back here.

11,385

Scan it both are control signals to the computer for air fuel ratio. HEGO is only active after closed loop mode criteria is meet.

Your Answer

Add photo

Related Questions

  • mass air flow sensor 24 answers

    I have a 1999 grand prix gt. My service engine light came on and i went to auto store and used the computer. It indicates the mass air flow sensor is problem. So I tried some cleaner and reset the...

    1999 Pontiac Grand Prix

    -

    Maintenance & Repair

  • mass air flow sensor 2 answers

    I have a 1999 grand prix gt. My service engine light came on and i went to auto store and used the computer. It indicates the mass air flow sensor is problem. So I tried some cleaner and reset the...

    1999 Pontiac Grand Prix

    -

    Maintenance & Repair

  • Why when I replaced MAF sensor did my catalytic converter overheat? 10 answers

    My 2001 Pontiac Grand Prix 3.8L 3800 had a mass air flow sensor code so I bought a new sensor and the catalytic converter overheated. I replaced the new sensor with the old sensor and the problem we...

    2001 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • 2000 Pontiac Grand Prix GT Mass Airflow Sensor 39 answers

    So today I was cleaning my car and cleaned my mass airflow sensor. Ever since I got the car the engine rpms pulse and I get around 15mpg.I used the mass airflow sensor cleaner, and then unplugged ...

    2000 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • Mass fair fow sensor 2 answers

    I have an indication of mass flow indicator problem. the range and price is huge. are some parts and completely and not as pictured?

    2002 Pontiac Grand Prix GT

    -

    Shopping & Pricing

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,980
#2 Tom Demyan
Tom Demyan
Reputation 2,660
#3 munron
munron
Reputation 2,070
View All

Related Models For Sale

Used Chevrolet Impala
796 Great Deals out of 34,384 listings starting at $799
Used Pontiac Bonneville
5 Great Deals out of 655 listings starting at $1,599
Used Chevrolet Monte Carlo
15 Great Deals out of 1,661 listings starting at $2,000
Used Pontiac Grand Am
1,649 listings starting at $1,995
Used Chevrolet Malibu
1,006 Great Deals out of 85,681 listings starting at $1,995
Used Ford Mustang
363 Great Deals out of 44,490 listings starting at $1,000
Used Chevrolet Camaro
279 Great Deals out of 38,301 listings starting at $1,250
Used Nissan Maxima
343 Great Deals out of 25,222 listings starting at $1,400
Used Honda Accord
814 Great Deals out of 81,613 listings starting at $899
Used Nissan Altima
1,075 Great Deals out of 82,559 listings starting at $670
Used Jeep Grand Cherokee
843 Great Deals out of 68,676 listings starting at $864