Reading back your previous posts, You mention that the engine keeps switching off?
Right i had this same problem with mine, It was the crank shaft sensor.
I cleaned all the earths, But did not make a difference. apart from my lights getting brighter.
I went through 3 different coil packs, But problem was still there.
I did not change the relays, But started car from stone cold and touched relays after 10 - 15 mins of driving, and they were hot enough to touch, So it was not the relays too.
I changed the distributor car & rotor arm, that did not help aswell.
I didn't clean the throttle body, so i knew the problem wasn't there.
I checked all the bretaher pipes, and they were all bang on.
Last thing to check was before it went to the scrappy was.... CRANK SHAFT SENSOR. and it turned out to be that. The wires were completely detoriated.
So i replaced that, with a new part from GSF and i've done over 3000 miles since. NOT GAVE ME A PROBLEM SO FAR. Touch Wood.
My car kept on turning off at traffic lights and would not start until left for abit. and sometimes i could be driving it all day and when coming to switching it off, it would not start up.
Question for you Itteh?, When your car turns off, Does the oil light flash? and do the revs go all over the place?
Also your car giving you dirty mileage, I would put that down to, Breather Pipes, Oil Service and possibly get a new ECU Temp sensor.
and as it stands about that little sensor, I would say that its got nothing to with the car cutting out on you. Like you say its been like that since last year, but never gave you a problem. However it will play a little part in giving you dirty mileage, But not alot.
Its an easy fix, I'll tell you that...
