TheMichael

Forgot to mention, Sorry! The car pulls fine, runs fine, everything is fine except the idle + it cannot do dpf regen if i'm standing still.

Hi there, i'm a fresh owner of octavia 2 and i'm already starting to question the choice I made. Bought the car and changed everything that was important for the engine: Timing belt kit+water pump, Oil pump belt, Accesories belt, Oil+All filters and Coolant. I even cleaned the intake manifold which was full of carbon. 200.000Km The car run fine for 1-2 months then started to develop a weird shake, first i thought it was the engine support who was crying for help, after noticing the rpm needle moving a little bit at idle i called my friend with a obd2 tester. We got the P106500 error, after disconnecting one injector after another to see if it changes the idle, the car started to run even worse at idle with all injectors connected. So far i did: tested the injectors - Fine The engine timing belt was verified 4-5 times to make sure it is on place. Check for metal pieces in the regulator valve from HPFP - No metal present I changed the regulator valve from HPFP - No difference (piece code: 1 462 C00 987) If i disconnect the fuel pressure sensor the car starts to run fine, no shakig idle, no shaking rpm needle. Changed that too, no difference (piece code: 03L906054A, the old one was 03L906051~) I did a readaptation of the pressure control valves with a delpi tester, nothing changed. I tested the in-tank fuel pump, bleeding the system to see if it starts, it works perfect, The only thing remaining to change is the regulator valve from the common rail. I did the internet test for N276, a guy was diconnecting the return line from the common rail and redirecting it in a container. U have to start the car and let it run at idle for 30 seconds, after that you turn off the engine and check the container. I should have 100ml -+10%, if not, the valve is broken. Well, in my container after 30 seconds i had somewhere around 170-180ml of fuel. Tommorw i'm going to buy the valve and if that doesn't fix it, i think i'm gonna buy 2L of petrol and start a campfire *joking*. I didn't checked the fuse box yet. Any help or indications would be much appreciated.