1998 Civic EX false tachometer readings
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1998 Civic EX false tachometer readings
1998 Honda Civic EX
5 Speed
Problem: Tachometer reads about 3000 RPM at cold start and increases as I accelerate. Tach usually corrects itself to correct RPM reading but will often jump back up and read very unusually high RPMs as I drive under normal conditions.
Mileage: 233,990
Recent repairs: Distributor O-ring/seal replaced
This problem started after I had the distributor O-ring/seal replaced, not sure if the two are connected or not.
Any help with possible diagnosis for this would be appreciated
5 Speed
Problem: Tachometer reads about 3000 RPM at cold start and increases as I accelerate. Tach usually corrects itself to correct RPM reading but will often jump back up and read very unusually high RPMs as I drive under normal conditions.
Mileage: 233,990
Recent repairs: Distributor O-ring/seal replaced
This problem started after I had the distributor O-ring/seal replaced, not sure if the two are connected or not.
Any help with possible diagnosis for this would be appreciated
Registered!!
Joined: Sep 2017
Posts: 12
Likes: 0
Rep Power: 0 
Re: 1998 Civic EX false tachometer readings
Got a 98 Civic y8 auto. Replaced the dizzy and now my tach reads about 1k high. Sometimes more, less, sometimes it works. I believe the yellow with blue stripe wire on your obd2 dizzy plug controls tach. Check for shorts, new eBay dizzy had loose internals from factory.
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