1991 E190 2.3 litre problem.....

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1991 E190 2.3 litre problem.....

01-23-2009, 11:37 PM

sbourg

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Join Date: Jul 2001

Location: SoCal

Posts: 1,303

Quote:

Originally Posted by fireman453

and 12.9 or so at the battery. i was wondering if it might be a problem with the overvoltage protection relay?

The OVP supplies power to the ECU, and should not affect the reading you are getting. That 1/2 Volt drop between the alternator and the battery is too much. Look for bad connections or a large fuse that has blown.

Steve

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'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7

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