S40 CPS code PO339

wilsonrcjr · Post by **wilsonrcjr** » 30 Sep 2017, 05:53

I rebuilt my daughters S40 non turbo 2005. When restarted it will run for 10-15 seconds and stall. Codes intermittent Crankshaft position sensor. I replaced the sensor, & the connector. I sent it to a repair shop and they had problems communicating with the computer and told me to take it to the Volvo dealer. After 5 hours of diagnostic fees, they said it needed a computer and or flywheel. So, I brought it home and had Xemodex redo the ECM and I put in a new flywheel. There is no change, cranks, dies. The Volvo mechanic and I both checked the harness - there is continuity at the ECM pins for the CPS. Any ideas would be appreciated.

wilsonrcjr · Post by **wilsonrcjr** » 31 Oct 2017, 18:23

I replaced the engine wiring harness today - still no improvement
runs for 10-12 seconds and codes crank sensor
any ideas would be appreciated.

Post by **MadeInJapan** » 04 Nov 2017, 11:59

Make sure the battery is not weak...strange things happen with our cars when they are.