Matter of fact, a blown OVP fuse would rarely indicate the OVP is bad either... The fuse will blow if the alternator/battery source voltage goes too high, of if there is an excessive load on the circuits the OVP supplies. OVP caused problems usually result from poor internal connections forcing the output voltage to be erratic, which confuses the engine management circuits.

Steve

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

best and most logical explanation i have heard about a bad OVP

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


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