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Are cam and crankshaft position sensors in OBD I data stream?

2371 Views 2 Replies 2 Participants Last post by  keithsketchley
Does anyone know if cam and crank position sensor data is on the Chrysler DLC bus for the 1994 3.3L gasoline engine (US federal emissions, not flexfuel)?

I’m looking at a data reader from an established company, but as best their sales person can figure out they are not.

That is really strange given their importance to the engine running at all.

Thanks in advance....
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· Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
17,317 Posts
The DRB III tool shows the CMP and CKP sensor data as either 'Lost' or 'Present'. It is information shared on the bus to the scan tool. A 'Lost' sensor can be a wiring, jumped timing, failed sensor or PCM problem. This can be checked while cranking the engine in a 'no-start' case, so the engine doesn't even have to be running. These sensors share common powers and grounds.
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