Tachometer Does Not Read Correctly (Page 1/1)
eti engineer NOV 28, 02:37 PM
I haven't been in here for a while, but I have a question that I am sure I can be helped with by you all.

I have a 1988 Fiero GT with T-tops. The car is in excellent condition, so there is not really anything that needs my attention. I have one small problem that bothers me, however, and this is that the tach reads about 3 times higher than it should for any given engine rpm. I have replaced the tach filter and it did not cure the problem. If anyone else has had this issue and solved it, I sure would like to know what it takes to make it work correctly. Thanks...
Gall757 NOV 28, 03:50 PM
Send a PM to forum member J Gunsett
pmbrunelle NOV 28, 06:57 PM
Cliff Pennock DEC 02, 10:28 AM
Is it really three times higher? It could be that you actually have a dash for a 4-cylinder installed. But then it should read 1.5x too high.