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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 09-10-2017, 08:21 AM   #1
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No fuel injectors working

I have a 2003 9-3 convertible which is identical to my 02 9-3 convertible. I got this one from a person who had lost the keys and he bought new key. Had everything married again. It ran before. Does not now. We have fuel, spark. A shot of ether and it will run. Put a noid on injectors. Nothing. The display above radio says CHECK OK. From what I read that means everything it talking to each other. I changed the CPS today. Still no go. Any thoughts ?
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Old 09-11-2017, 11:12 AM   #2
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Check if you're getting pulsed +12v on one of the leads by using another reference ground. If the ground is damaged or loose this can happen. I think the injector ground lead is one of the lugs that is screwed to the back of the intake manifold. You can check this by checking for injector pulse coming directly out of the ECU too. There are T7 wiring diagrams floating around that will tell you what pins to check.
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Old 09-14-2017, 10:17 AM   #3
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I would second checking the grounds, I had this exact situation happen to me and tightening the grounds on the intake manifold fixed it.
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