If you do a compression test and all the cylinders are showing 14 bar....
Is there a chance that when actually driving when you place the car under load you could be losing compression resulting in lack of performance or feeling like the car is holding back?
Also another thing...
According to elsawin when you do a compression test it says to disconnect the hall sensor. If you don't as I found out before you get a hall sender error logged in the ECU.
However when I checked the compression yesterday I forgot the disconnect the hall and today plugged in vagcom expecting to clear a hall sender fault, and there wasn't one, but it said that the crank sensor was out of range and intermittant.... Could this be causing my lack of performance problem or was this a result of not disconnecting the Hall sensor when carrying out the compression test ??
I have a spare crank sensor I could try but I know its a pig to change and don't want to do it for nothing !!
Cheers
LEE
