Misfire?

[gash]

Hi all

I have a 2001 passat TDI pd130, when the car is first started it runs like a dream, when the engine starts to get warm , the engine starts to misfire and bounces around all over the place. If i keep drivng until i can see the temp guage drop (indicating the thermostat opening), then switch off the engine and restart, the car runs perfectly . I have had the codes read, intermittant electrical connection to no. 4 cylinder and intermittant misfire of no 4 cylinder. I have checked the basics i.e connections and cables and cannot see anything obvious. My thinking is that i have a sensor fail somewhere in relation to the coincidence of the temp levels. Any help would be greatly appreciated

Gash

[Handeye]

Sounds almost like a fuel issue. Did it sit for a long time?

[gash]

Hi Handeye thanks for the reply, i have had the car for two years and every workday havre travelled 150 mile commute, so it has been worked hard. Had the car to my local mechanic resterday, and apparantly it was some problem with the injector wiring to cylinder 4, the wires are located in the rocker cover so checked all connections and measured resistance of injector. Reassembled everything and the car runs like a dream again - all i can think off is it must have been a conenctor problem.

Thanks again