balbovr6 0 Posted April 29, 2013 Report Share Posted April 29, 2013 Hi Guys, My golf vr6 ob2 highline has started to splutter when i start the engine and it has lost power, idles rough. Any ideas what the problem could be?I have replaced throttle body, spark plugs. air mass meter is fine and so is the coilpack.Thanks Bal Link to post Share on other sites
Woodyman84 3 Posted April 29, 2013 Report Share Posted April 29, 2013 Always a chance of lambda. Does it do it every time regardless of hot or cold start? Also I know u said air mass is fine but I had a prob with mine that was very intermittent.As always your best place to.start is to get vag com on it an see what comes. Up Link to post Share on other sites
VR6Pete 1,455 Posted April 29, 2013 Report Share Posted April 29, 2013 Could be blue temp sensor? Link to post Share on other sites
daxmatt 0 Posted April 29, 2013 Report Share Posted April 29, 2013 Split pcv valve Link to post Share on other sites
wardycatt 7 Posted April 30, 2013 Report Share Posted April 30, 2013 You've replaced a couple of sensors - maybe look at a couple more (e.g. temp sensor, camshaft sensor, lambda)? And I would double-check the others that you've already mentioned - especially the MAF.Electrically, I would normally be blaming the coil pack or plugs but you've mentioned that they're ok already. I assume you've checked the leads (seated properly and in good condition?)PCV valve might give you a moderately rough idle, but you shouldn't be noticeably down on power as a result of that. Was the old throttle body incredibly oily, out of interest?Does the car splutter when cold and warm? At all revs? Link to post Share on other sites
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