Quote:
Originally Posted by hayday
Hi Chuck...
Thanks for your comment.
Yes when it begins to struggle at 4,200 RPM, if I hit the gas the tach drops very quickly. I told the garage this and they said the speed sensor checked ok and was the right distance from the flywheel. They said they replaced it last Fall. The comment was also made that a speed sensor should cause problems all the way up to 4,200 RPM not at just one spot...
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Ok, since the tach is controlled by the DME, there are not many things that can cause it to drop so fast. Some that come to mind:
1) speed sensor read error
2) DME relay failure, causing DME computer to lose power
3) DME computer problem, causing computer to stop functioning momentarialy.
When you get it solved, please let us know what the final problem was!
Chuck.H
'89 TurboLookTarga, 359k miles