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86 911 Targa 86 911 Targa is offline
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Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
Speedo.

Quote:
Originally Posted by Number1_dog View Post
1979 SC
Speedometer ran when I first got car, then had the transmission re-built (by Gary Fairbanks in CT) and two years rebuilding the engine etc... and it now doesn't work.

I got a new sensor, and just had my speedo re-built by North Hollywood.
I have continuity from sensor H wireattachment to the two brown wires at back of speedo.
4 wires attach to the back of speedo
1) have power on red/black when ignition switch turned on and attached to +

speedometer contact A is left empty

2) the green sensor wire goes to 31b and
wires 3, the other sensor wire and wire 4, a ground wire, goes to the - .

Could the transmission be missing whatever the sensor picks up?
Can I check the sensor ? Should there be continuity between the two sensor wires?


please help!!!!!

dog
Hint: Chip damage prevention.

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Last edited by 86 911 Targa; 03-04-2012 at 09:31 AM..
Old 03-04-2012, 08:32 AM
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