16396 - Bank 1: Camshaft A (Intake): Advance Setpoint not Reached (Over-Retarded) P0012 - 35-10 - - - Intermittent From searching I gather this is to do with the VVT unit sticking or not working. Drop sump, clean pick-up, change oil. If not, I have a couple of VVT units and chain. 17705 - Pressure Drop between Turbo and Throttle Valve (check D.V.!) P1297 - 35-10 - - - Intermittent 17608 - Boost Pressure Control Valve (N249): Mechanical Malfunction P1200 - 35-10 - - - Intermittent I gather this may be to do with the Forge DV that's been fitted - and is now 11 years old. The plan here is to change the DV for standard and check all vacuum hoses for condition/leaks. If it persists then check/replace the N249. 16514 - Oxygen (Lambda) Sensor B1 S1: Malfunction in Circuit P0130 - 35-10 - - - Intermittent The p.o. had the same code 2 months ago and had a new lambda sensor fitted (I have the receipt). I think I'm correct in assuming that the above code is from the pre-cat sensor? It's entirely possible the garage replaced the wrong one or the new one has failed. Grateful for any input on the above - especially if I'm very obviously barking up the wrong tree Cheers
OK, so the garage must have changed the post-cat sensor as the pre-cat was definitely a lot older than 2 months. Anyhow, new Bosch lambda fitted and DV changed to standard. Seems OK.
Good job, won't be long before something else pops up though I am sure. The Forge dump valves need servicing every now and then to keep them working correctly.
I'm sure there will be lots more going wrong . By coincidence I was building a K04'd AUM on the side so I have virtually every sender and sensor for a BAM - all brand new