ECU and fuel pump relay problems, help! - Saab 900 Bulletin Board - Saabnet.com
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ECU and fuel pump relay problems, help!
Posted by Mac [Email] (more from Mac) on Thu, 26 Feb 2004 09:42:26
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Have continuing problem that I think is ECU ground signal to fuel pump on '89T. Car starts readily but then dies, or tries to, immediately after starting. Considering history on 89T ECU, have tended to think ECU was not giving ground signal to fuel pump relay indicating that engine had RPM and thereby shutting off fuel pump. But problem is intermittant though increasingly frequent, and I can keep car running if I continually pump the accelerator. It would seem that if ECU was the problem, it would not be an intermittant problem and pumping the accelerator would not keep car running. I have checked and cleaned all grounding connections. I have tried to jump the fuel pump relay, but this does not work for me (maybe an indicator of what's really wrong). Anyone have any ideas, please?
posted by 63.183.136...
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