[s-cars] CMPS signal shape (was Location of CPS?)
David Forgie
forgied at shaw.ca
Thu Dec 31 16:09:22 PST 2009
Konstantine: Did you pull the blink codes? Cam sensor = 2113. Method is explained here:
http://www.sjmautotechnik.com/trouble_shooting/ecuf20v.html#fcs4
The fuel pump is not fired by the J17 fuel pump relay unless the ECU sees the cam sensor signal:
http://forums.quattroworld.com/s4s6/msgs/22583.phtml
If you are hearing the fuel pump, it implies the cam sensor is fine (but pull the blink codes anyway).
To be sure the fuel pump is working, you might want to test it, as indicated here:
http://forums.quattroworld.com/s4s6/msgs/22623.phtml
and here:
http://www.elektro.com/~audi/fuelpump/index2.html
However, before you do any of those, have you checked that you have spark? A shorted coil
(damaged insulation, shorted to the cam cover) will take out the coil fuse down by the ECU. A
method for testing the coils is shown here:
http://forums.quattroworld.com/s4s6/msgs/22611.phtml
Some of the above HAS to help (I hope).
Dave F.
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