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I have a 1997 Pontiac Grand Prix GTP and after changing my…

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I have a 1997 Pontiac...
I have a 1997 Pontiac Grand Prix GTP and after changing my mass air flow sensor ,throttle position sensor ,idle air control sensor ,and ignition coils my car wont start.
Can somebody tell me what's going on
Submitted: 2 years ago.Category: Pontiac
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Answered in 8 hours by:
2/25/2016
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago
FIXITMAN
FIXITMAN, Mater Technician
Category: Pontiac
Satisfied Customers: 17,611
Experience: ASE MASTER CERTIFIED, AA DEGREE AUTO/DIESEL TECH
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Hello, my name is***** you for the question. Can you tell me why these parts were replaced?

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Customer reply replied 2 years ago
Just brought the car
Maf sensor prongs was broke
I changed the coil packswire I did spark plugs and wire
The egr valve, tps, and IAC sensor because it was free
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

Was the car running prior to that?

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Customer reply replied 2 years ago
for about a day after I change the parts
Customer reply replied 2 years ago
I have spark from the ignition coils wasn't able to do the fuel pressure test but got a trouble code P1200 injector control circuit
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

Thanks. Do you hear a buzzing from the fuel pump when you turn the key on?

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Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

Is the security light on or flashing when you are cranking the engine over?

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Customer reply replied 2 years ago
Its on
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

Then that may be the problem. If the security light is on while cranking the engine then it can shut down the fuel system. What throws me off is the code you have. That tells me that there is a voltage issue to the injectors.

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Customer reply replied 2 years ago
Just went outside try to crank it again now the security light is blinking when cranking
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

Turn the ignition key on to the run position and leave it there for about 30 minutes and see if the light turns off. If it does try starting it.

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Customer reply replied 2 years ago
OK I'll try it
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

Let me know what happens.

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Customer reply replied 2 years ago
I tried it
Started it stayed on for 30sec puttered then shut
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

Is the security light staying on or flashing again?

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Customer reply replied 2 years ago
Flashing
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

I need to make sure the kind of security system you have. Does your key have a small black pellet in it?

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Customer reply replied 2 years ago
No it don't
But my cousin came and told me to checkmy fuel pressure resistor and when we checked it was cracked could that be the reason why the car is not starting
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

That can cause it to not run, but that does not explain the security light.

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Customer reply replied 2 years ago
Now that i have the original key I don't get the security light but still no start
Pontiac Mechanic: FIXITMAN, Mater Technician replied 2 years ago

Then you may have just isolated it down to the resistor. If it is cracked it needs to be replaced.

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Customer reply replied 2 years ago
Car still didn't start after changing the part but I don't see the security light
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