Where should i begin?? My 94 Audi S4 does not want to start...
08-27-2008, 07:05 PM
#1
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Where should i begin?? My 94 Audi S4 does not want to start...
the fuel pump is good....i got a speed sensor no signal code on my Vag-com.
Some advice will be great.Thanks guys!
Some advice will be great.Thanks guys!
08-28-2008, 03:13 AM
#6
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Dave has some good info for you here....
<center><img src="http://i78.photobucket.com/albums/j115/TheDirtyGerman/222.gif"></center><p>
Dave says you might try searching the archives. You might discover the likely culprits are the fuel pump and the cam position sensor. Both horses are badly bruised and battered by these forums, yet they continue to return.
gluttons for punishment they are.
Right Dave?
Dave says you might try searching the archives. You might discover the likely culprits are the fuel pump and the cam position sensor. Both horses are badly bruised and battered by these forums, yet they continue to return.
gluttons for punishment they are.
Right Dave?
08-28-2008, 05:22 AM
#7
Suggest that he search the Original S-cars forum for "stranded". This will find the two most likely
causes of non-starting: cam position sensor or the fuel pump (and their interconnection).
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08-28-2008, 07:11 AM
#9
1. Pull codes. Look for 2113 - Cam Position Sensor
If you get a 2113, you have your answer. No CPS = no start because the J17 fuel pump relay is not triggered and without the J17 engaged, the fuel pump isn't powered, the O2 sensor isn't powered and the injectors aren't turned on.
Note: The CPS can fail and NOT throw a 2113 code so a negative response does not clear the CPS as a suspect.<ul><li><a href="http://www.sjmautotechnik.com/trouble_shooting/ecuf20v.html#fcs4">http://www.sjmautotechnik.com/trouble_shooting/ecuf20v.html#fcs4</a</li></ul>
Note: The CPS can fail and NOT throw a 2113 code so a negative response does not clear the CPS as a suspect.<ul><li><a href="http://www.sjmautotechnik.com/trouble_shooting/ecuf20v.html#fcs4">http://www.sjmautotechnik.com/trouble_shooting/ecuf20v.html#fcs4</a</li></ul>
08-28-2008, 07:13 AM
#10
2. Check to see if the fuel pump is functioning properly (link inside)
And don't just assume that it is fine. Test it.
If it tests fine, it's something else, e.g. cam position sensor or the J17 fuel pump relay.<ul><li><a href="https://forums.audiworld.com/s4s6/msgs/161382.phtml">https://forums.audiworld.com/s4s6/msgs/161382.phtml</a</li></ul>
If it tests fine, it's something else, e.g. cam position sensor or the J17 fuel pump relay.<ul><li><a href="https://forums.audiworld.com/s4s6/msgs/161382.phtml">https://forums.audiworld.com/s4s6/msgs/161382.phtml</a</li></ul>