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Fuel Pump
2 years 1 month ago #22693
by Rich928
Rich
Membership Chairman
Charter Member
1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue
1979 928 5-liter track beast
What I mean is check the continuity of the circuit between LH connector pin 1 and EZF connector pin 16. The fuel injection cannot start working unless the RPM signal produced by the EZF reaches the LH fuel injection module. A bad connection or open/short circuit will cause a not start. The tachometer also uses the EZF RPM signal. A failed tachometer can ground out this signal.
Rich
Membership Chairman
Charter Member
1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue
1979 928 5-liter track beast
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- drkshrk86.5
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2 years 3 days ago - 2 years 3 days ago #22717
by drkshrk86.5
Replied by drkshrk86.5 on topic Fuel Pump
Hello Rich. I finally got the engine all buttoned up. I have tach bounce when turning over, I have fuel, It will run on ether still, All the relays for fuel pump ezk and lh are clicking but still have no injector fire. You said you could check the LH for me. I guess I don't no what to do other than that at this point. I did put chips in it from 928 international years ago and it always ran good. Can you let me know how to get the LH to you. Barry. Thanks Much..
Last edit: 2 years 3 days ago by Rich928.
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