Mk2 gti 8v running rough and slightly under powered

[apie2004]

To check if the sensor is faulty just unplug it and see if it runs any differently. Its here.....
http://www.golfgtiforum.co.uk/index.php?topic=200311.0

[Simpson]

sounds defintiely like injector seals to me, easy enough to replace with care

[busterdub]

I disconnected the blue coolant sensor this morning before work and the engine almost died! And have noticed the temp gauge only gets off the cold section of the gauge....thinking this maybe my problem??

[Simpson]

did you read my post? its the injector seals and the temp guage has nothing to do with this problem your thermostat is shot!

[busterdub]

Right had abit of time on the car today, checked out the seals on the injectors and changed for new....then changed out the thermostat....temp issue sorted.....still no joy with the running issue so I did the blue coolant thing and the car was running ok so I thought I would go on a test was abit rough but then was back to its normal self!! Happy days!! but then 20 mins it the drive boom problem was back I have done the blue coolant thing another time and it 50/50 so stopped again and adjusted now its running bad......any ideas? Break in the cable somewhere? Cheers rich

[busterdub]

All sorted now cheers had a good day at it yesterday, even managed to get the collies, new grill on and a quick clean

[Simeon]

So what was the problem?

[Simpson]

Ooh the suspense, go on tell us, what was it?

[geedubyagraham]

I know it's been a while but I'm interested to know what it was ??