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Bad TPS? Transmission shifts late and hard.

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Bad TPS? Transmission shifts late and hard.

Old 12-09-2013, 04:24 PM
HCF Member
Join Date: Nov 2013
Posts: 29

Originally Posted by simply78 View Post
Ryan - I have a 2001 Civic with the same issue but I don't understand the acronyms and jargon...

CEL - Check Engine Light
The light on the dash that should ALWAYS turn on momentarily when you turn the key on as a bulb test, and there after if/when there is an issue that needs to be addressed.

TPS - Throttle Position sensor
Used to monitor the position of the throttle in an internal combustion engine. The sensor is usually located on the butterfly spindle/shaft so that it can directly monitor the position of the throttle.

ECU - Electronic Control Unit (the car's computer).
ECM - Electronic Control Module (again, the car's computer).

VSS - Vehicle Speed sensor
Measures transmission/ transaxle output or wheel speed. The ECM uses this information to modify engine functions such as ignition timing, AF ratio, transmission shift points, and to initiate diagnostic routines.
Old 05-16-2018, 11:57 AM
Junior Member
Join Date: May 2018
Posts: 1
Default Same problem, how do I fix it!?

I am having this exact same problem with my 95 Civic ex coupe, shifts hard and at too high RPM . Can anyone give me an exact walkthrough on how to correct this?
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