#1: 206 GTi lumpy idle Author: johnpidge, Posted: Fri Feb 20, 2015 10:45 am ---- My GTI 138 has done 77k and when I start from cold it starts fine first time everytime BUT a minute after starting it idles very lumpily - the car vibrates a fair bit (as if it is running on 3 cylinders) touch the trottle and it runs fine and within another minute or two idleing at tickover it slowly goes. Car goes perfectly runs very sweetly - returning 25mpg in London!!!! does not miss a beat - I have run a bit of fuel cleaner in it and I run it on Optimax (but who knows what its been run on before me!?) but havent made any difference
Plugs were changed less than a 1000 miles ago before I got it - had an oil change - new filter etc etc
Lamba sensor (I think it has two??) injectors?? or engine mounts er Im a bit baffled
Any ideas guys
#2: Re: 206 GTi lumpy idle Author: Carlos_WR1, Posted: Fri Feb 20, 2015 10:47 am ---- Have you got any codes? if so get them read, if it does fire on 3 i would have thought a fault would be stored so could be down to an injector.
Other than an injector, id be looking at the knock sensor - could be an intermittent issue on it?
#3: Re: 206 GTi lumpy idle Author: johnpidge, Posted: Fri Feb 20, 2015 10:49 am ---- Carlos
No I havent got any codes - I will get a reader on it - knock sensor - hmm didnt think about that!!
Thanks
#4: Re: 206 GTi lumpy idle Author: kandlbarrett, Location: SwindonPosted: Fri Feb 20, 2015 11:27 am ---- You may have a list of codes that have been there a while. The first thing to do is note the codes and then clear them: do not act on them. Then start the car from cold and take the car for a drive. re-read the codes.
It wouldn't be first time someone had chased defects due to codes that were no longer relevant!
#5: Re: 206 GTi lumpy idle Author: LeeThr, Location: North West WalesPosted: Fri Feb 20, 2015 11:29 am ---- Hydraulic lifters starting to fail. Common problem.
#6: Re: 206 GTi lumpy idle Author: johnpidge, Posted: Fri Feb 20, 2015 11:31 am ---- Hydraulic lifters starting to fail - arghhhhhhhhhhhhh - I hope not
Will investigate
#7: Re: 206 GTi lumpy idle Author: kandlbarrett, Location: SwindonPosted: Fri Feb 20, 2015 11:37 am ---- LeeThr: is there a way for John to detect which is failing to avoid buying a complete set? Obviously there are things like manifold temperature but any other good ways to check this?
Will oil flushing help?
#8: Re: 206 GTi lumpy idle Author: Carlos_WR1, Posted: Fri Feb 20, 2015 12:49 pm ---- Just a thought, you mentioned the plugs had been changed some GTI's dont like running on NGK plugs and so a lot of people say to run on Bosch.
#9: Re: 206 GTi lumpy idle Author: johnpidge, Posted: Fri Feb 20, 2015 1:04 pm ---- Hydralic tappets - its odd its onlyvon a cold startup and no noise - going to check plugs as well and get a readrr to check fault codes - if its the tappets are they just blocked or dirty or do they need replacing or will a good hard drive imprive them
#10: Re: 206 GTi lumpy idle Author: johnpidge, Posted: Fri Feb 20, 2015 2:11 pm ---- sorry for the poor spelling and grammer - im not drunk (i wish) samsung auto spell gone a bit odd
#11: Re: 206 GTi lumpy idle Author: LeeThr, Location: North West WalesPosted: Fri Feb 20, 2015 2:42 pm ---- Depending upon how bad they are, you may be able to pin point the direction by the noise. I know I have 1 if not 2 failing on cylinder 4 on the exhaust cam. can here a distinctive tapping from the rocker cover.
First thing to try though would be an oil change. See if that cures it.
On a side note though, at that millage the cambelt should have been done or at the very least somewhere in the pipeline very soon. and if it hasn't been done, it could work out in your favour as the belt would need to come off to replace the tappets anyway so both jobs could be tackled in one go reducing labour costs (if your using a garage) or saves your sanity if doing it yourself. Euro car parts do sell the tappets for £9.48 at the moment, although I can't say I know how good the quality is (or is not as may be the case) or genuine peugeot one's are £24.25 each inc vat.
#12: Re: 206 GTi lumpy idle Author: johnpidge, Posted: Fri Feb 20, 2015 2:59 pm ---- Lee - it had a cambelt shortly before i bought it arghh maybe 1500 miles ago john
#13: Re: 206 GTi lumpy idle Author: LeeThr, Location: North West WalesPosted: Fri Feb 20, 2015 3:56 pm ---- Try an oil change first then see if that improves it. But if it does come down to tappets the belt will have to be removed.
#14: Re: 206 GTi lumpy idle Author: kandlbarrett, Location: SwindonPosted: Fri Feb 20, 2015 5:25 pm ---- Temp sensor playing up? MAPT or coolant temp sensor?
Live read of data using PP may be needed.
#15: Re: 206 GTi lumpy idle Author: andy83, Location: stoke on trentPosted: Sat Feb 21, 2015 12:37 am ---- i think all has been covered here but plugs/coils/sensors are worth a look also maybe a good service/give the throttle bodie a clean whilst your at it (very easy job).
but as above defo worth getting a code reader plugged in see if that shows anything up.
We are not responsible for comments posted by our users, as they are the property of the poster
Interactive software released under GNU GPL,
Code Credits,
Privacy Policy
Membership:
Latest: 
New Today: 0
New Yesterday: 0
Overall: 17125
Online Now [88]:
Visitors: 87
Members: 0
Staff Online Now:
Page Views:
General
