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Re: Can't start '86 240GL - ?? faulty fuel pump or regulator or relay 200 1986

Cathy:

My '85 245 once gave me a series of "no starts" due to a low battery. There WAS visible spark at the plugs and the engine turned over, but apparently there was insufficient voltage to run the tired fuel pump (I had to replace it shortly thereafter). Anyway, a jump would usually get me going. Will your car start if jumped?

Also, you might try disconnecting the Air Mass Meter and try starting it (do not disconnect or reconnect the AMM with the engine running). If it starts and idles with the AMM disconnected ("limp home mode"), you may be looking at replacing your AMM. Yours should be an 007, which are fairly plentiful in the junkyards (any '85-'88 240 or NA 740). Haynes, despite its shortcomings, does contain a set of resistance checks for the AMM that you might want to try.






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