I wasn't aware of any after market bits on the car? There's the dump valve on the turbo as standard and then there's a boost controller mounted just under the scuttle - this was faulty when i started out and was replaced by a new one) but I didn't see any other dump valve?MTXM wrote:As the ecu seems to have been tinkered with I would replace that before doing anything else and another unit should be fairly easily obtained. There was also a dump valve fitted on the breather pipe against the bulkhead on the driver side when I bought the car. Regards, Matthew T.
By the way, one thing I didn't look at was the anti knock sensor (there might be TWO of these). The one at the front of the engine under the inlet manifold was looking cracked but no fault codes came up for it. It has a green plug under the manifold.
If you want Mark you can have the LED diagnostic reader I made. It's ideal for moving things along and any fault code can be cleared. Unless you just want to make your own - it's pretty simple.
The Idle stepper motor on the car is brand new but there's a second unit in the box of bits I brought that might be worth refitting for a test.
With all the bits off to change the sensor you could have removed the new crank sensor to check it was clean. I checked it and it had a bit of metal clinging to the end that no doubt caused iffy readings. But it's a pig to reach with the coilpack and such in place.