Lachleaves1 · Apr 16, 2020

Hiya guys, not posted for a while...
Making good use of lockdown...
Hope you are too...

I have a faulty cam sensor problem that's doing my head in!
Typical symptoms: starts from cold ok, though tickover a little erratic... Performance is obviously a little sluggish... Doesn't like to restart...

Diagnostics (Hawkeye): code P0341 - cam sensor fault. Live data:camsync: Lost.

This continues to be the case despite changing the sensor 3 times, and even changing the engine bay wiring loom!
I've carried out a static test with a multimeter on each of the cam sensors I've had - readings from earth to Red, and then to Green sensor wires hold to a steady approx. 12v and 10v respectively (with ignition on). No drop in voltage when the sensor is in contact with something metal.

Any ideas??? Please!???

Nodge68 · Apr 17, 2020

My project 1.8 Tonga had an issue where it put the MIL on randomly, and gave a cam sensor code. I just replaced it with a second hand one from an old V6, and the light or code never returned.

It's strange because the engine won't start unless it has a cam position signal, but I suspect a weak output from the sensor will flash a code.

Lachleaves1 · Apr 17, 2020

Nodge68 said:
My project 1.8 Tonga had an issue where it put the MIL on randomly, and gave a cam sensor code. I just replaced it with a second hand one from an old V6, and the light or code never returned.

It's strange because the engine won't start unless it has a cam position signal, but I suspect a weak output from the sensor will flash a code.

Lachleaves1 · Apr 17, 2020

Thanks a lot.
Ironically, the MIL doesn't illuminate (except with the ignition).
Have tried 3 different sensors. Could they all be faulty!?

tonytherunner · Apr 18, 2020

ENGINE COMPARTMENT FUSE BOX
F3 15 A CMP sensor fuse

Nodge68 · Apr 18, 2020

Lachleaves1 said:
Have tried 3 different sensors. Could they all be faulty!?

Unlikely that all will be faulty.

Lachleaves1 · Apr 18, 2020

tonytherunner said:
ENGINE COMPARTMENT FUSE BOX
F3 15 A CMP sensor fuse

Thanks. Checked all fuses. They're fine

paul99 · Apr 19, 2020

Not impossible for them all to be faulty, though. Were they new, secondhand, OEM or copy parts?

Lachleaves1 · Apr 19, 2020

paul99 said:
Not impossible for them all to be faulty, though. Were they new, secondhand, OEM or copy parts?

Have had one of each! A secondhand one... A brand new one... OEM part....
Next to try, is a replacement ECU.
I can't think of much else to replace...

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