erratic idle / cutting out

[adamm306]

Hi guys instead of spamming my project thread its probably easier to have its own dedicated thread

having a bit of trouble with the xud.

everything was running fine and tip untill today.

Basically it struggles to idle and i can feel slight missfires and hesitation below 2k RPM

when the cars first started it will sit nicely at 1000 rpm for 10-20 seconds or so then drop down to 500 to the point where its going to cut out does this for around 10 seconds or so then raises back upto 1000 so on and so forth.

once you get going onto boost or over 2k rpm the car is fine (poodling along at 25-30 in 4th/5th car misfires and has general hesitation if you let off throttle)

car completely cuts out if your driving along and slowing down to change gear dump clutch itll cut out and as u bring it back up for the gear change itll bump back into life.

oh and after i switched the car off fuel started leaking from the vent point of the entry so it had me thinking an air leak or some sort?



how can i test for leaks anyone got some anti-retard guide to check for leaks?

so far ive looked at leak off pipes and boost compensator both seem fine.

any help appreciated i am a bit of a noob when it comes to things like this.

thanks