Question about 2000 Pontiac Grand Prix
I have check engine light that came on it was the coil for miss fire. but now i cant pass etest now. is there a away for me to remove history codes from the computer. i was told u can by doing different this at the same time. i have 2000 grande Prix gtp. thanks
Don't disconnect the battery as that starts it all over again. Starting on page 10 of the attached link is what you want to pay attention to. You have to go through different types of driving and this explains the necessary driving patterns to get the OBDII readiness test to pass first. This only helps if you're failing the readiness test. If you have DTC's (Diagnostic Trouble Codes) stored, you need to get them cleared. Many local autoparts stores, such as Oreilly and Autozone carry a scanning tool that can serve to reset the DTC's. Pay attention to see if they're current. If they are, try resetting them, but they'll probably come back. If they do, look into each code. They're often interrelated.
Here's the link for the OBDII readiness. Again, start on page 9.
Posted on May 07, 2014
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Posted on Jan 02, 2017
If you have a GTP these engines use a hi output fuel pump. they use a fuel pump resistor located under the battery tray (look up from under the car) This resistor lowers the voltage to the fuel fump when not in boost mode. because of its locatoin it is prone to corrosion. if you bypass the wires and the engine starts and stays running replace the resistor
Posted on May 16, 2009
Rocker panels for the 97-03 Grand Prix 4 door are available here:
Rocker panels for the 97-03 Grand Prix 2 door are available here:
Posted on Jun 30, 2009
i have the sameproblem. Dealer part was quoted to me at $510.00. All after market parts stores were $350- 450. Try moving the emerg. flasher button while you step on the brakes and someone else watches the lights. I jammed paper beside the button and they work until I can fix it.I had to order the multi-function switch. and you have to pull the air bags to replace it.
Posted on Jul 15, 2009
Hello! This indicates a fault with the wheel speed sensor/ABS sensor. Any major auto parts retailer can pull the details of this code (which sensor) for free, which will help you identify if the wiring is loose or damaged or if the sensor will need to be replaced. If you need to replace the sensor - you will need to replace the entire wheel bearing assembly, as the sensor is internal.
Thanks for using FixYa!
Posted on Nov 02, 2009
Hello fosch: My name is Roger and I will help you. The code p0305 is a cylinder specific misfire code. The cylinder is #5. This could be a bad plug,bad wire a problem in the cylinder or a bad injector. If the motor has the original plus and wires that would be a good place to start. Be sure to use quality parts. Easier to do the job once instead of twice. I would do a compression test on #5 cylinder while the plug is out. Any compression that is less then 100 psi. the cylinder will not fire. Should the compression be any less you will need to find the mechanical problem and repair it before you will fix the misfire problem. Should you need further help please just ask. I will be glad to assist you. Please rate the answer. This way i know it was helpful. Thank You for using Fix Ya. Roger
Posted on Mar 25, 2010
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