Urgent help needed!

[starkygti]

hey guys the cupra died on me the other night turbo had no power and started running really lumpy as if only firing on 3 cylinders. called aa we played about with the coil packs put one new one in and the car seemed to idle properly but still no turbo. got it plugged into the vag com last night and threw up boost pressure control valve and 3 misfire faults one in any cylinder one in cylinder 1 and one in cylinder 2. what do i do help please. my turbo doesnt spool at all. all help appreciated thanks alex.

 

[AlexGSi2000]

N75 valve?

 

[starkygti]

what and where is the n75 valve

 

[TeeJay]

N75 - http://www.seatcupra.net/forums/showthread.php?t=10170

 

[starkygti]

but when the vag com is on the boost pressure control valve is n249?

 

[TeeJay]

There is a guide on how to bypass the N249 here - http://uk-mkivs.net/forums/p/213950/1381524.aspx dont know if that will sort out the problem though

 

[starkygti]

what about the misfires is that just replace the plugs

 

[TeeJay]

Sorry, I dont know mate

 

[starkygti]

anyone else with any input?

 

[tom w]

How many coilpacks did you replace ? I had two go at the same time but only under load

 

[starkygti]

just the one but the aa guy said to try the plugs too but i have absolutely no turbo!

 

[tom w]

have you cleared the codes too?

 

[tarzan]

Had missfire problems my self on the passat 1.8t used vag-com on it was coilpack on mine.Changed all 4 as when one goes the rest can go to..And check for vac.leaks or intercooler hose popped off