engine turns over wont start

1989 SAAB 900
200,000 MILES
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KCOSPARKY26
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After checking fuel pump and spark I plugged in a noid light and got nothing. what could be causing this?

thanks

I have fuel pressure and spark. But I have nothing when I plugged in the noiod light.
May 7, 2012 at 6:37 PM
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RASMATAZ
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Possible the injector ground driver circuit within the computer is defective, injector fuse or injector wiring
May 7, 2012 at 6:46 PM
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DOCFIXIT
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checked for codes? 16V turbo or non? sedan or convertible/
?
May 7, 2012 at 6:50 PM
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KCOSPARKY26
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It is a sedan. Tried to get a rent a tester to check for code, but none of the auto part stores have one. My son drove to work one day, and when he ot off it just turned over and wouldn't start. I rules out the fuel pump and had spark. Noid light test failed. I might have to tow it to a saab shop to have them test for codes.
May 7, 2012 at 7:02 PM
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KCOSPARKY26
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It is a 16v turbo.
May 7, 2012 at 7:32 PM
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ASEMASTER6371
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use a test light to check for 12 volts at the injector. if there is, then they are not being grounded by the ecm.if there is not, you need to check the fuses.

what is the fuel pressure?? how did you determine the pump is good??

you also need to check the crank sensor as its main function is to toggle the injectors.

Roy
May 8, 2012 at 1:26 AM
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KCOSPARKY26
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It was cord to the brain. The clip was bent and the connection came loose. Thanks too for your input. Steve
May 8, 2012 at 1:29 AM
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ASEMASTER6371
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cord??

roy
May 8, 2012 at 1:34 AM
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