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1993 buick skylar gs doesnt run
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te2
Novice
Nov 14, 2014, 1:08 PM
Post #1 of 11
(1516 views)
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1993 buick skylar gs doesnt run
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1993 buick skylark grand sport
3.3 v6
240000 (about 20000 on rebuild of engine and trans)
The car will not start. It is getting spark at the plugs. Fuel pump and filter have been replace, it is turning on and putting out acceptable pressure. Oil switch and fuel realy have been replaced as well as the ecm, tps and maf. Injectors are giving 11.8 volts from negitive on battery to plugs. All injectors resistance are around 12 oms. The throttle body has been removed and cleaned. The car runs perfectly fine as long as carb cleaner is sprayed directly into the throttle body but dies immediately once stopped. Any advice would be much appreciated.
(This post was edited by te2 on Nov 14, 2014, 1:09 PM)
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kev2
Veteran
Nov 14, 2014, 1:35 PM
Post #2 of 11
(1501 views)
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Re: 1993 buick skylar gs doesnt run
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check fuel pressure - you will need a gauge.
check injectors for 12v -
see if they are flashing -
a noid light makes these injector circuit checks easy
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te2
Novice
Nov 14, 2014, 4:58 PM
Post #4 of 11
(1483 views)
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Re: 1993 buick skylar gs doesnt run
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40psi
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Discretesignals
Ultimate Carjunky
/ Moderator
Nov 14, 2014, 5:22 PM
Post #5 of 11
(1480 views)
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Re: 1993 buick skylar gs doesnt run
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As Kev stated, does it have injector pulse?
Does the check engine light illuminate when you turn the ignition on?
Have you checked for trouble codes by jumpering A to B in the diagnostic connector and counting the flashes of the check engine light?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Nov 14, 2014, 5:27 PM)
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te2
Novice
Nov 15, 2014, 11:16 AM
Post #6 of 11
(1454 views)
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Re: 1993 buick skylar gs doesnt run
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No pulse or any lights at all with noid light and there are no codes when jumping a to b.
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 15, 2014, 11:31 AM
Post #7 of 11
(1449 views)
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Re: 1993 buick skylar gs doesnt run
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It takes both power supply and pulsing ground to make the light flash. Check to see if you have power at one side of the injector plug with the key on.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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te2
Novice
Nov 15, 2014, 12:12 PM
Post #8 of 11
(1446 views)
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Re: 1993 buick skylar gs doesnt run
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Going from the negitive on the battery to either end of the injector plug i have just over 12v on all.
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 15, 2014, 12:17 PM
Post #9 of 11
(1440 views)
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Re: 1993 buick skylar gs doesnt run
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OK, since you have spark, that means your Crank sensor is good and th3 ECM is not providing pulse. Very carefully test every single fuse with a test light to make sure power for the computer hasn't been cut off but it sounds like you may have a bad ECM. Also verify that the check engine light comes on for bulb check when the key is turned on>
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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te2
Novice
Nov 19, 2014, 12:33 PM
Post #10 of 11
(1396 views)
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Re: 1993 buick skylar gs doesnt run
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Alright problem turned out to be a bad fusable link running constant power to the ecm. Whiched caused the check engine light to not come on as well even when just turning over the ignition. Thanks very much for the assistance.
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 19, 2014, 2:40 PM
Post #11 of 11
(1391 views)
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Re: 1993 buick skylar gs doesnt run
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Glad to hear you found it. Closing this now as solved to keep the spammers out.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Nov 19, 2014, 2:41 PM)
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