Thread: 1998 C280
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Old 01-05-2021, 09:01 AM
mbrown1630 mbrown1630 is offline
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Join Date: Sep 2020
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1998 C280

Car turns over will not start. Replaced crank & cam sencers. Then i discovered no fuel presure. Replaced fuel pump, still no pressure. Tracked electrical line 29 from fuep pump relay to ECU, when ground pump would run. Sent ECU to repair shop. Told it was toast, had it copied on different Ecu. Installed and pump still would not run unless we put a jumper at the pump relay connection. Sent ECU back to be checked and was told it is good. Repaced relays in the trunk and under the hood that deals with the fuel system. Pump still does not run unless you use a jumper on the fuel pump relay. If i keep useing it that way it starts leaking fuel above driver's side rear wheel. I replaced the vapor pump there. My next step is to sell it as a parts car unless someone can give me a fix remedy.
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