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GL 740 B230F 1989- no start 700 1989

posted by  boxvolvo on  Sat Jun 30 01:08 CST 2007
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last visit: Fri Oct 24 04:28 CST 2014
[RELATED]

Do you have access to another ECU? The 556 ECU means you've got a California car - with EGR - but a 561 or 951 will work for a test.

I had a problem with an 89 740 a couple of years ago - fuel seemed to be pumping fine out of the line, injectors were working, good spark, no start. Turned out to be a bad main fuel pump which was failing but not quite dead, and not up to specs on pressure.

Look in the 700 FAQs for fuel pressure testing, might be useful.





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