urgent help needed

[adamfitz]

Driving along minding my own when the \'heat\' light comes up on the dash. Goes off after 2 or 3 seconds. Comes on again after 20 yards or so for similar duration of time. Car starts to go lumpy and then revs rise before I turn it off. If someone could be so kind and ring me 07791555033 I can explain better

[boosted]

Heat light is knock detection ...or aka detonation mate....rather dangerous mate for your engine....

[clive]

Sorry to hear this Adam, when you say lumpy do you mean running like a tractor lumpy

[adamfitz]

It spluttered a little bit, didn\'t sound like a tractor. Ran a sensor check and everything was fine. Light was only intermittent. Spoke with a couple of people off of fduk. Drove it home and everything was fine. Going to speak with carl this afternoon after work

[probedb]

Yep, best to check. I got mine flickering on a lot when I floored it. Pip had a check and a drive and decided it was just being too sensitive. The knock sensor is basically just a microphone and if your car is noisy for whatever reason it can set it off.

[adamfitz]

Yea it would flicker on and off when boosting getting near the red line, but I was trundling along doing 30 and that was max speed I\'d done. Had been fine when I drove it sunday monday and tuesday