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Discussion Starter #1 (Edited)
CEL P0500, now bouncing speedo - HELP

This is a new one on me.

CEL P0500 code - Vehicle Speed Sensor. Cleared it. Car seemed fine, now speedo is dropping about 20 MPH then bouncing back. This is happening on and off.

Reading on the list; is the Speed Sensor on the left rear break?

Anybody else seen this?

BrianM
 

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Premium Member
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64 Posts
Discussion Starter #2
This is a new one on me.

CEL P0500 code - Vehicle Speed Sensor. Cleared it. Car seemed fine, now speedo is dropping about 20 MPH then bouncing back. This is happening on and off.

Reading on the list; is the Speed Sensor on the left rear break?

Anybody else seen this?

BrianM
Really, nobody has seen this?
 

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i have no practical experience with this problem, but here's how i'd begin troubleshooting:

i guess that this could either be a gauge cluster problem or a vehicle speed sensing system problem.

does the behavior exist in the obd reported vehicle speed? if not, then suspect the gauge cluster.

i believe that you are correct that the sensor used for speed calc is the left rear one. the sensor and reluctor ring are integrated into the bearing hub, so if this is not a wiring problem, then that component may be suspect.
 

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I have this problem since I fitted an EMU Black also odometer reads at only 20% of distance travelled. OK with OEM ecu.
 
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