1 reply to this topic

[tyke23]

Not posted on here for ages as everything is running great until this afternoon. I left home and noticed straight away he wasnt running right seemed like he was not getting enough fuel then a few hundred yards down the road i pulled over i had a look under the engine couldnt see anything wrong. Then he wouldn't start when i turned the key, i tried again and gradually he bust into life thick black smoke came out of the exhaust then grey then he ran fine any ideas why this happend.

cheers in advance

[_dougie_]

Sounds like the engine is/was running very rich.

This problem is often caused by a faulty coolant temp sensor and/or intake air temp sensor. It gives the ECU the information that it's colder than it's really is, and the ECU provides more fuel.

I had a similar problem a while ago in combination with a faulty vacuum hose connector, giving a wrong MAP sensor signal

BR
Ralf

Edited by _dougie_, 23 November 2008 - 10:30 AM.