2009 C30

dylsc30 · Post by **dylsc30** » 10 Jun 2023, 17:49

Just bought my 2009 Volvo C30, carfax shows timing belt was changed within 10k miles of me taking ownership. CEL on with codes P0016, P0017, P0340, P0420. Any idea what these could be related to? New to Volvos, more of a subaru guy myself, but have always loved the C30’s.

dylsc30 · Post by **dylsc30** » 10 Jun 2023, 17:51

Also forgot to add, car runs and idles fine, from what I can tell. (Have nothing to compare it to)

Post by **Krons** » 10 Jun 2023, 20:54

Do the codes come back?

P0016 ECM-643A Camshaft position, intake Signal too low
P0016 ECM-643A Camshaft position, intake Signal too high
P0017 ECM-644A Camshaft position, exhaust Signal too low
P0017 ECM-644A Camshaft position, exhaust Signal to
P0340 ECM-3000 Camshaft position (CMP) sensor, intake Faulty signal or signal missing
P0420 ECM-4801 Three-way catalytic converter (TWC) Intermittent fault efficiency, bank 1

https://www.matthewsvolvosite.com/volvo ... wer-codes/

Could be camshaft position sensor or VVT solenoids if it reoccurs.

dylsc30 · Post by **dylsc30** » 10 Jun 2023, 23:47

Krons wrote: ↑10 Jun 2023, 20:54 Do the codes come back?

P0016 ECM-643A Camshaft position, intake Signal too low
P0016 ECM-643A Camshaft position, intake Signal too high
P0017 ECM-644A Camshaft position, exhaust Signal too low
P0017 ECM-644A Camshaft position, exhaust Signal to
P0340 ECM-3000 Camshaft position (CMP) sensor, intake Faulty signal or signal missing
P0420 ECM-4801 Three-way catalytic converter (TWC) Intermittent fault efficiency, bank 1

https://www.matthewsvolvosite.com/volvo ... wer-codes/

Could be camshaft position sensor or VVT solenoids if it reoccurs.

It comes back almost immediately.

Post by **Krons** » 11 Jun 2023, 06:24

I’d check the wiring first (given you are getting high and low voltage), then maybe change out the sensors.

A video (not mine) to help locate them.