Camshaft position sensor.

Toplights · Post by **Toplights** » 04 Sep 2010, 09:54

Hi jabblackburn,I'm not so shure the Cam Sensor is dead.As said above, tested CPS as follows.
Using Anollogue Meter.
Sensor connected.
Probed wires 1 and 2 with fine needles into their core.(i actually made up short plug bridging wires containing needles)
Clipped test leads to the leads as follows.
Positive lead to Signal wire 2 Blue/yellow.
Negative lead to Ground wire 1 Brown/black.
Cranked engine,needle of Meter showed Full range deflection, back and forth, while cranking, over full range of dial.
Turned of key,Meter read 12V for 240 seconds till main relay 2/32 deactivated.
Cant say what that proves though perhaps someone on here will know.
Reguards to all.

clarkandrew45 · Post by **clarkandrew45** » 06 Apr 2011, 18:58

Toplights wrote:Hi jabblackburn,See my earlier post first please.Today i retested my figures and i may have tested the Checking Signal cable to Ground, wrongly.In the test proceedure it askes if the resistance is infinate and it isent.I get a reading of 1.43 Kohms with my multimeter set on the 20K setting.Does this mean i have an earthing fault in the Camshaft position sensor circuit? your comments would be apreciated. Reguards Malcolm.

That was my biggest problem since last week. One thing i just noticed is that you have conducted testing on the signal cable. I guess i need to try that one.

Toplights · Post by **Toplights** » 07 Apr 2011, 04:37

Hi clark,it's been a while since i last posted on this forum.After extensive tests,the CPS turned out to be good.I eventially found the fix and the V70 hits the road on the first of May.It took a whole year of diognosis and much electrical testing.If you'r interested see this link.Reguards to all Malcolm.
http://www.volvoforums.org.uk/showthrea ... Spark+fuel

Post by **jblackburn** » 07 Apr 2011, 07:01

Wow, glad you finally got it running again!