lindavr6 0 Posted March 21, 2008 Report Share Posted March 21, 2008 my vr6 runs fine when cold but when it gets warm it starts to judder in low revs and then it starts to back fire i have had a new gear box , new leads ,new plugs but no change does anyone have any ideas please help thanks linda Link to post Share on other sites
blackmagicvr 7 Posted March 21, 2008 Report Share Posted March 21, 2008 possible faulty coilpack?wait till its dark and have a look where the ht leads connect into a oblong black box on the right of the engine,you will soon see if there are any sparks flying,hope this helps,regards jon. Link to post Share on other sites
lindavr6 0 Posted March 23, 2008 Author Report Share Posted March 23, 2008 Hi Mate Thanks for that tried it last night and there was mo spark had it on the computer at the dealers and they carnt find nothing wrong (nothing showing) anyone help please Link to post Share on other sites
thegoth 5 Posted March 25, 2008 Report Share Posted March 25, 2008 I've now seen a similar thing on 2 MK3 16Vers. Mine would become lumpy mid range when warm and the other lost power in high revs when warm and it was down to the ECU supply relay.http://www.tiepie.com/uk/automotive/GMTO/VW_Golf_problem.htmlI'll have to double check which relay position is used on a VR and the number printed on it. On a 16ver it has 30 written on it but that's not to say a VR uses the same number.After all the money you've spent - I spent a fair bit before finding it :-( - a tenner on a relay even if just to see, unless you can borrow one, doesn't seem extreme.TGP.s. was it the stealer who suggested replacing the gear box? Link to post Share on other sites
thegoth 5 Posted March 26, 2008 Report Share Posted March 26, 2008 it should have either 30, 109 or 299 printed on it. It's in relay position 3 which is 3 in from the left on the second row above the fuses. Link to post Share on other sites
drue1 0 Posted March 27, 2008 Report Share Posted March 27, 2008 clean the idle control valve,air flow meter and throttle body only cost is carb cleaner and some time.i did mine along with plugs,leads dissy cap and rotor arm and mine is running sweet as Link to post Share on other sites
ip 0 Posted June 17, 2008 Report Share Posted June 17, 2008 I would still recomend changing the coil pack. My car was doing this (drove me mad) and I had replaced plugs and leads too. I had also removed the coil pack, checked for cracks, tested for correct impedances and sprayed water on the pack while the engine was running at night to check for sparks. All tests showed the coil pack was fine.The, tried a new coil pack in desperation and the car ran perfectly after that. The coilpack really is the weak spot of the VR6 give it a shot. Link to post Share on other sites
jesterwalker69 0 Posted June 17, 2008 Report Share Posted June 17, 2008 Same as ip. No fault codes, no sparks, no nothing! just a lumpy engine and the occasional pop and off i shot!Changed the coilpack and bob is currently my uncle! Link to post Share on other sites
Recommended Posts