I know there are allot of threads on this topic, but I can't find one with my specific issue.

I replaced my OVP a couple days ago...and my tach started working again...all was good, but then today I was driving and the ABS light came on, and the tach stopped working, then the ABS light went off and the tach came back....and so on.....Sometimes the ABS light will not come on at all and the tach works great, but when it does come on, the tach quits.
Any ideas?

This is on my 95 E300D

__________________
1995 E300 Diesel
1994 E320
1999 C230K
1994 S500 W140
1990 300 SEL