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Discussion Starter · #1 ·
Issue ive got is the tacho reads above and faster then what it should be, ive tried the following. Sdt btw

3x sensors across 2x cars
3x clusters across 2 cars
1x aftermarket alternator
1x original Hitachi alternator

Across 2nd car response is fine within sensors and clusters. Alternators i did not test however I can verify the original worked fine in the car I pulled it from. My only guess would be a pulse issue, however where along the line would be the most likely places to look?

TL;DR tacho is in racecar mode how to fix
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