1999 sunfire

100

Asked by Feb 11, 2017 at 02:17 PM

Question type: Maintenance & Repair

I have a 1999 Pontiac sun fire that just shut
off and won't start I have cked fuel
pressure ,spark at all plugs, cked pulse at
the injectors cked plugs no problem found
only code was a pending map sensor I
don't think that would make not run maybe
run rough any ideas where to go on this

19 Answers

73,835

Have the ignition control module checked at an auto parts store.

1 of 1 people found this helpful.
73,835

A crank sensor also would prevent it from starting.

1 of 1 people found this helpful.
100

I will ck those 2 things and let you know what happens thank you

1 of 1 people found this helpful.
100

The control mod is good is there a test I can do to ck crank sensor I worked on fords for 20 years I don't have a good scanner to ck it that way is there a pinpoint test to ck it

1 of 1 people found this helpful.
73,835

They say it is like a magnet. I think you take it out and just run power threw it and check it against something metal. If the control module is good more than likely the coil pack is good too. Not much to these, is it a 2.2L?

1 of 1 people found this helpful.
100

Yes it's a 2.2 I'm getting spark at all cylinders can the crank sensor be bad if I'm getting spark

1 of 1 people found this helpful.
73,835

I don't think so. You have spark. Something else. What was the MAP sensor code?

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73,835

What was the fuel pressure?

1 of 1 people found this helpful.
100

I had a pending po107 41 psi on the fuel pressure

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100

I cked power to map I have 5 volts cked sensor with vacuum and voltage changes I'm running out of things to ck the only thing I havnt cked is compression

1 of 1 people found this helpful.
73,835

Your killing me hear. Fuel pressure should be 40 to 47 lbs. and I don't see either that the po107 is causing this also. AND you have spark. Well, it wouldn't have anything to do with the anti theft system you think? May want to try and go threw a reset procedure. One problem with that is I am not too sure on what that is. I just know about it. I do have a GM procedure, not sure if it works on that car.

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73,835

Compression it is...

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73,835

Thinking about the anti theft, when that kicks in it usually shuts down the fuel injectors, and you said there is a pulse there.

1 of 1 people found this helpful.
100

I will ck compression and try to do a reset on theft system this car is driving me nuts I can usually figure out any problem but hard when you can't find anything wromg

1 of 1 people found this helpful.
73,835

The thing has a timing chain too.

1 of 1 people found this helpful.
Best Answer Mark helpful
70,325

Yes, if you have spark and fuel injector pulse it's not the security system. Next thing to check is compression. If all cylinders test very low or zero, it's jumped timing. HTH. -Jim

100

Found no compression thks for your help

1 of 1 people found this helpful.
73,835

Unreal. Sometimes we get blinded by technology and and over look the simple old school basics...

2 of 2 people found this helpful.
70,325

You're welcome. Glad to help. Thank you for letting us know! -Jim

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