Check gas pedal assembly...

RaynormusT wrote: ↑23 Sep 2025, 12:51 Why does it seem so difficult to find wiring diagrams for this model year? I see 2003 and 2005 but 2004 seems to be left out. Can another model year be used?

does 04 v70 work for you ?

https://charm.li/Volvo/2004/V70%20L5-2. ... Diagnosis/

Or try this site for wiring diagrams:

https://volvodiag.com/ewd-online-eng/

Neil.

It is a 'cam reset valve' (VOlvo term) or cam solenoid error on the exhaust cam.

- Incorrect cam belt timing
- dirty Cam reset valve (VVT solenoid)
- dirty oil or poor oil performance
- Bad VVT hub

Inspect the VVT solenoids, especially the exhaust one. You need a new gasket for each: https://www.fcpeuro.com/products/volvo-camshaft-solenoid-gasket-reinz-30731212 It is not uncommon for mesh filter in this gasket to clog. Absolutely don't over-tighten the bolts! They don't take much to torque, li...

thats my oil change code, occasionally I toss a filter in too. Code goes away after that.

i have an ELM327 which shows calculated fuel amount, pairs to your smartphone and downloads torque software.
i leave mine plugged in 24/7.

Likely not without custom can commands.