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-   3rd Generation Specific (1993-2002) (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/)
-   -   Location of Odometer ground under UIM? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/location-odometer-ground-under-uim-1150371/)

Badappex 03-14-21 02:43 PM

Location of Odometer ground under UIM?
 
Anyone have a photo or diagram of the location by the coils to reference?

DaleClark 03-15-21 08:24 AM

What are you trying to figure out?

If memory serves the odometer won't light with the engine out of the car, one of the ECU grounds is tied into that circuit somehow. If the car is all together but your odometer isn't working you probably have a failing instrument cluster. There are options for repairing them.

Dale

Badappex 03-15-21 01:36 PM

Yup - (one of the ECU grounds is tied into that circuit somehow)
Mileage cuts in / out. Wanted to check the ground by the coils before removing the cluster. Probably looking to purchase used cluster rather than repair, we'll see.

DaleClark 03-15-21 03:41 PM

Michael Gagne on Facebook does cluster repair - he just did mine and a friend's cluster. Does amazing work and he has a full test bench that he can test EVERYTHING on the cluster and calibrate it too. Hands down that's the way to go. He also turned my cluster around the same day.

Dale

cr-rex 03-15-21 10:25 PM

he just did 3 of mine as well... he is the goat. 1 of the ones he did for me is listed for sale right now if youre interested :biggrin:

Badappex 03-16-21 07:34 AM

If anyone can, send me the FB link. Getting back to the original post -looking for a diagram of the ground by the coils...

DaleClark 03-16-21 11:25 AM

There's a ground that bolts to the top of the rear rotor housing and one that goes around the rear stud of the lower to upper intake manifold. That's the only ground wires on the ECU harness on the engine.

Dale


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