Well my car speedometer goes up and down and.

RICKEYMONROE

MEMBER
2001 MITSUBISHI ECLIPSE
104,034 MILES

Well my car speedometer goes up and down and then the check engine light comes on. I changed output speed sensor light the code told me to and now its saying pending the guy at auto zone said it like the computer haven't recognized it. So im lost on what the problem is and its shifting to fast sometime. Is theres any other problems that could cause that.

Friday, March 8th, 2013 AT 12:19 AM

2 Replies

ASEMASTER6371

MECHANIC
52,796 POSTS

First auto zone is a part place that sells you parts they are not techs. Codes never identify bad parts just failed systems.

Output speed sensor is not the speedometer. It is for the shifting.

The speedo sensor is on the rs axle housing by where the axle goes in. It needs to be checked with a scanner to verify it is working

Roy

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Friday, March 8th, 2013 AT 12:28 AM

WRENCHTECH

MECHANIC
20,761 POSTS

The computer didn't tell you to change anything. It merely indicated a specific situation in the circuit that sensor is part of. It now needs to be further diagnosed as it can be anything in the circuit or even something inside the transmission.

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Friday, March 8th, 2013 AT 12:30 AM