Question about 1999 Pontiac Grand Prix

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Bank 1 sensor on pontac grand prix 2000

Trying to locate the knock sensor on pontac grand prix gtp 2000

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Posted on Jan 06, 2013

  • Terrie Jan 06, 2013

    the code is PO327 Knock sensor ! circuiut low input bank 1

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SOURCE: Location of mass air flow sensor, 2000 Grand Prix GTP

3.1 or 3.8 motor, mass air flow is in the fresh air (goes from air cleaner to engine)

Posted on Feb 07, 2010

  • 112 Answers

SOURCE: 2002 Pontac Grand Prix GTP P0171 code engine stumbling at times

Bank 1 is the frt side exhaust manifold (did they say bank 1 sensor 1?),you can start by replacing that sensor,i would check the intake for leaks ,the gm 6cly. are known for bad intake gaskets,you will see oil coming out form the frt or rear of the intake,also check your atifreeze overflow bottle for bronwish sludge,which means that the oil is mixing with the antifreeze.A leaking intake could cause that lean condition.

Posted on Mar 29, 2009

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1 Answer

2002 Grand Prix GTP has code p1133. Insufician swtching bank 1 sensor 1 . What should I do, Replace it?


For a little bit technical. pcm send .450mv as reference the middle is .500mv it's rated o to 1000mv . The o2 sensor sense rich condition over .500mv and lower poor condition.It's switch from rich to poor condition all the time.But as to go near 100mv and 900mv if not o2 sensor could be at fault

Aug 30, 2013 | 2000 Pontiac Grand Prix

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2000 Grand Prix GTP supercharger fluctuates when accelerating


There is no wastegate.

Change the spark plugs and pay special attention to the plug on bank 3. Look for physical damage on the electrode...cracked, bent etc.
Use Autolite 605's copper core gapped to .055" and NEVER run less than 92 octane.

Apr 02, 2010 | 2000 Pontiac Grand Prix

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Location of mass air flow sensor, 2000 Grand Prix GTP


Hi:
The mass air flow sensor is a round sensor that is mounted in the air intake, between the air cleaner box and the engine throttle body.

Feb 07, 2010 | 2000 Pontiac Grand Prix

1 Answer

Need to know where the knock sensor is in a 2000 grand prix


Under the intake manifold in the valley between the cylinder banks.

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Jun 22, 2009 | 1996 Pontiac Grand Prix

1 Answer

2002 Pontac Grand Prix GTP P0171 code engine stumbling at times


Bank 1 is the frt side exhaust manifold (did they say bank 1 sensor 1?),you can start by replacing that sensor,i would check the intake for leaks ,the gm 6cly. are known for bad intake gaskets,you will see oil coming out form the frt or rear of the intake,also check your atifreeze overflow bottle for bronwish sludge,which means that the oil is mixing with the antifreeze.A leaking intake could cause that lean condition.

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1999 Grand Prix GTP. Catalytic convertor fine.


Make sure it always gets premium fuel...even with premium and especially in warmer weather the GTP will frequently perform the factory programmed KR (knock ******.) In WOT it is also more susceptible to running a lean condition with stock programming.
Things you can do to troubleshoot the problem and give more consistant performance with the GTP is run colder range copper core plugs and/or any brand of cold air intake, or even a stand alone 9" open element cone filter. Both are better than stock and provide more airflow even though the stock airbox was redesigned in '99. What else you can do is not limited to that but a start. Good luck.

Mar 08, 2009 | 2000 Pontiac Grand Prix

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