M103 suddenly died on FWY at 70mph

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M103 suddenly died on FWY at 70mph

10-30-2010, 02:13 PM

NDP 2.6 190E NDP 2.6 190E is offline

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Join Date: Aug 2001

Location: California

Posts: 177

Quote:

Originally Posted by MBeige

I don't think a 1991 would have the fuel pump relay. I think it appeared up to 1990 only?

The FPR was replaced by a MAS unit that control multiple functions (including fuel pump relay).

Can you hear the fuel pump buzzing when you turn key to position right before starting?

Cannot hear the fuel pump with ignition on. Cannot find a FP relay.
Behind the battery is the OVP relay, MAS unit and what look to be 2 x control modules - each with a large connector on top.

The crank position sensor reads ~1100 ohms, so assume this is OK.

__________________
Neil.

1991 190E 2.6 170k
1995 E320CA 57k
1999 Chevy Tahoe 98k
2000 R1150GS 45k
1983 300CD 178k - sold, but not forgotten

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