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Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Pontiac
Satisfied Customers: 1580
Experience:  Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicles
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2001 grand am will only start after the fuel pump is turned

Customer Question

2001 grand am will only start after the fuel pump is turned on with a scan tool. i the scan tool is unplugged it stalls and will not restart
JA: Is the check engine light on? Does the car stall at idle or when driving?
Customer: when scan tool is not plugged in
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: fix self
JA: Anything else you think the mechanic should know?
Customer: no
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Pontiac Mechanic about your situation and then connect you two.
Submitted: 5 months ago.
Category: Pontiac
Expert:  Chad Farhat replied 5 months ago.

Hi, I' m Chad. Welcome to JustAnswer. I' m reviewing your question now, and I will be post back with your reply ASAP

Expert:  Chad Farhat replied 5 months ago.

is there any fault codes ?

are you getting a ground from pcm on the fuel pump relay ?

the scanner acting like a ground and keeping the fuel pump running, i have to confirm the circuit but i believe that is what is going on here ?

if u kept scan tool hooked up will it drive ?

please let me know

Thank You
Chad Farhat
ASE Certified Technician

Customer: replied 5 months ago.
It stays running and drives
Customer: replied 5 months ago.
I will check for ground
Expert:  Chad Farhat replied 5 months ago.

I seen 2 in my life time do that :)

Expert:  Chad Farhat replied 5 months ago.

2.4 or 3.4 liter , l need to look up the circuit ?

Expert:  Chad Farhat replied 5 months ago.

yes pleas do

Customer: replied 5 months ago.
3.4
Expert:  Chad Farhat replied 5 months ago.

ok you check and i will look be right back

Expert:  Chad Farhat replied 5 months ago.

check this out it actually gets power from pcm not ground ,i sent you the diagram , tell me what are we getting based on the diagram across all the really terminals and i like to know what you getting on fuel pump connector if you can please ?

please let me know

Thank You
Chad Farhat
ASE Certified Technician

Expert:  Chad Farhat replied 5 months ago.

is the a/c compressor working ?

Customer: replied 5 months ago.
I am not with car now
Expert:  Chad Farhat replied 5 months ago.

what are you getting on Dark green white wire at the fuel pump relay, that is coming from pcm ?

Expert:  Chad Farhat replied 5 months ago.

I 'm online daily from 10 AM till 12 PM , when you are with car just reply back on here and we can continue then

Expert:  Chad Farhat replied 5 months ago.

A Positive Rating is Much Appreciated

This Post Will Stay Open For You to Come Back and ask me any Follow up Questions you may have on this issue Even after you Rate Me.

Thank You
Chad Farhat ( aka -Customer)
ASE Certified Technician

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