Question about 2000 Pontiac Grand Prix GTP

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I have check engine codes p0306 and p0141 on a 2000 pontiac grand prix gtp

3.8 supercharged engine

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P0306 PONTIAC - Cylinder 6 Misfire Detected

P0141 PONTIAC - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0141 Pontiac O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2

Posted on Jan 02, 2017


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Will the motor and tranny from a 1998 pontiac grand prix GT 2 door coupe 3.8L motor fit in a 1998 pontiac grand prix GTP supercharged 3.8l motor

everything will cross over but the engine and transmission in the gtp are suppose be heavier duty built

Mar 02, 2015 | Pontiac Cars & Trucks

1 Answer

Transmission Compatibility

As you see I provided you the models you can apply the transmission :The 4T65E-HD (code MN7) is a heavy duty version of the 4T65-E used with more powerful engines such as the LS4 V8 and L67/L32 supercharged V6. Applications: 2.93:1 MN7 Pontiac Bonneville SSEi L67 Chevrolet Impala L67 Chevrolet Monte Carlo L67 Pontiac Grand Prix GTP/GXP Buick Regal GS Buick Riviera L67 (97-99) So ,yes you can!

May 28, 2013 | 1998 Pontiac Grand Prix

1 Answer

When I push on throttle and engage the supercharger on my 04 Pontiac Grand Prix GTP, the engine sputters a bit and the supercharger psi dips up and down. Check engine light came on, had code read, and was...

replace catalytic converter before you do more damage to your car. a restricked air flow out the exhaust will cut hoarse power and build up heat in your engine and will burn out sensors

Oct 28, 2010 | 2004 Pontiac Grand Prix

1 Answer

What kind of motor does a Pontiac Grand Prix have?

Depends on what sub-model you have. If you have an SE its a 3100 3.1L Engine. If its a GT its a 3800 3.8L Engine. If its a GTP its a 3800 3.8L but with a supercharger.

May 12, 2010 | 1997 Pontiac Grand Prix

1 Answer

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

1 Answer

Can I take a super charger out of a Grand Prix GTP and fit it on my Grand Prix GT 3.8L V6?

Well, the short answer is "yes". But - it isn't nearly as simple as just bolting the supercharger onto the intake and VOILA!, now you're supercharged. The procedure that you're inquiring about is commonly referred to as a "top swap", and there are numerous parts you will need for both engine as well as the transmission. Why the transmission? Because the GT and GTP use different gear ratios and the GTP has a 4T65HD as opposed to the 4T65E that is in the SE/GT. You will also need to have the PCM reprogrammed to accomodate all of these changes.

HERE is a great website that has a ton of very useful information, regarding this and many other Grand Prix topics.

Hope this helps and thanks for using FixYa!

Oct 20, 2009 | 2000 Pontiac Grand Prix

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