Misfire Problems

[bbsboy]

Hello

Was wandering if anyone has any ideas what could be wrogn with my 01 ibiza cupra, i took it yesterday to get revo'd and it was running but occasionally it made a popping noise, but after the code was put on it was running on 3 cylinders so the revo dealer put it on vag com to find a misfire on cylinder 3 unfortunatly my spare coils were at home 50miles away so we switched coil 3 to coil1 and ran it again now it was bringing up a fault on cylinder one. so i got a freind to bring up the coils and we put one in place of the faulty one and the car fired but wouldnt idle and kept cutting out which im guessing was the car clearing herself, eventually it was all ok but the idle was still hunting badly so we took it out a run and its got a misfire half way up the revs and is still popping but is showing nothing on vag coms. Anyone any ideas what could be wrong?

Cheers

Steven

 

[Mark@VAGWORX]

Did you clear the fault codes?

Perhaps the TB needs re-aligning.

 

[bbsboy]

i mentioned that to him and he didnt think it could cause a missfire, all the codes were cleared

 

[claudefrog]

Steven, im getting new coils fitted to my car on tuesday by dealer so if you want to check a known good 4 your more than welcome to on tue night.

 

[thermalp4]

How much are coil packs guys?

 

[bbsboy]

I think they are £21 plus vat, cheers marc, i think its the maf tbh or another coil on its way out, but aiden at triplle 7 thinks its either the coil, maf or the idle valve, but he cant be too sure. Hopefully it gets sorted asap

Steven

 

[flashbsd]

is the price fo £21 for one coil or all 4?

 

[claudefrog]

well.. you can borrow my MAf also if you like.. .would like to see the car up and running correctly

I think they are £21 plus vat, cheers marc, i think its the maf tbh or another coil on its way out, but aiden at triplle 7 thinks its either the coil, maf or the idle valve, but he cant be too sure. Hopefully it gets sorted asap

Steven

 

[claudefrog]

that would be each

is the price fo £21 for one coil or all 4?

 

[flashbsd]

bleedin heck, theyre only a bit of plastic with a plug on the end!

what a rip off.

 

[bbsboy]

Got it all sorted turned out to be a bad earth on the coils and a gunged up idle valve, the car goes really well now

Steven

 

[flashbsd]

hi mate, where abouts was the bad earth? on the wiring plugs? mine is a bit jittery so i wonder if its worth a go

p.s how do you get a coil out?!? pull it? and where is the idle valve? didnt think there was one?!? thanks

 

[ibizacupra]

bleedin heck, theyre only a bit of plastic with a plug on the end!

with an ignition amp and coil inside..

 

[flashbsd]

sorry im getting old and moany

 

[bbsboy]

hi mate, where abouts was the bad earth? on the wiring plugs? mine is a bit jittery so i wonder if its worth a go

p.s how do you get a coil out?!? pull it? and where is the idle valve? didnt think there was one?!? thanks

Hello, im not too sure were the idle valve is cause the mechanic did it, and i think the bad earth was on the plug that lead to the coils, to get the coils out you need to remove the bracket over them and pull them up, dead easy

Steven

 

[pickie]

if the car feels lumppy at idel, and stutters and lumppys a lot at low speed ( like mine did the other day ) then it may be the coil packs, vag com reported 2 coil packs gone on mine, got all 4 replaced to be on the safe side also if anyone else looks at vag com with this symtom have a look and see if an error code of " car exceeded 7600 RPM ??? " im sure ive never taken it past 6500 RPM ??

cheers
pickie

DOH didnt read the middle part of this topic i see it all sorted allwell