003 Air inlet temp sensor
057 Lambda probe before catalytic converter
135 Brake pedal sensor

Vehicle was presented with stalling problems when coming to idle (it wont tickover). After scoping lambda found it had flat-lined at pretty much 0 volts, CO reading was 6%, checked brake pedal sensor and found it to be faulty. Air temp sensor was found to be OK.

Replaced O2 sensor and brake pedal switch, no faults now being logged but engine will still not tick-over. Scoped MAP sensor (OK). Smoked manifold for leaks (OK), De-phaser is making an ugly sound at low engine speeds but the customer is saying he had a “proper” mechanic to check it and he said it was just slightly worn!!!

I’ve suggested checking the throttle body for operation but I’m getting a bit of grief off the customer over spending £116.98 so far and it still won’t tick-over! I said I had told him we had to eliminate the parts we know were faulty before we go on to the more tasty items. So can anyone help, I’ve activated the throttle body via diagnostic port and I can hear it working and unfortunately my magic wand stopped working so I have to go in and start stripping!

Mark