pugbliss 0 Posted June 22, 2007 HI right to cut things short and simple.... engine idels fine on the dot of 1000rpm`s but the engine is lumpy in its running, You can sit in the driver seat and feel the chugging as the car idels. It revs fairly freely and the plugs are the correct colour. The exhaust is fitted correctly with no leaks but sound rough. any ideas????????????????? Share this post Link to post Share on other sites
gti-si 0 Posted June 24, 2007 Mine was doing the same, it was pretty kangeroo'y aswell. After a while of checking everything over, found my rotor arm to be completly fubar'd. Got a new one from Hlafords and it's back to normal now, ish Share this post Link to post Share on other sites
pugbliss 0 Posted June 24, 2007 yeh i might just get a new cap and rota arm..... could the problem be down to the coil or ignition amp too????? Share this post Link to post Share on other sites
Sandy 191 Posted June 24, 2007 Sounds like an ignition weakness. Share this post Link to post Share on other sites
M_R_205 5 1 Cars Posted June 24, 2007 mine was the same a few weeks ago and the idle had droped to 500 or so, i replace the cap arm and plugs and it was fine Share this post Link to post Share on other sites
pugbliss 0 Posted June 24, 2007 ive replaced the plugs for bosch items and i repleced the leads but only for halfords jobbies.... which dont exactly fit but i think do the job....... im gonna go order some bosch leads ( part number b128) aswell asa new cap and arm.... then see what happends...if anything Share this post Link to post Share on other sites
pugbliss 0 Posted June 24, 2007 well been to halfords as its sunday... and all i could find was a rota arm...no cap as they dont seem to stock it so ill go to gsf or eurocar parts this week. have to say it has done a bit better.... but far prom perfect so hopefully a cap will resolve this. Share this post Link to post Share on other sites
M_R_205 5 1 Cars Posted June 25, 2007 sorry for the little hijack but i didnt want to start a new thread, iv just replaced my chapion plugs with super fours and the old champin plugs (only 3-4weeks old) are black with soot, why is this?? there supposed to be like a burnt brown sort of color arnt they??? Share this post Link to post Share on other sites
welshpug 1,657 Posted June 25, 2007 sorry for the little hijack but i didnt want to start a new thread, iv just replaced my chapion plugs with super fours and the old champin plugs (only 3-4weeks old) are black with soot, why is this?? there supposed to be like a burnt brown sort of color arnt they??? black = too rich, i.e too much fuel/not enough air, easy enough to resolve, just clean the plugs and adjust the fuelling accordingly (be it a faulty part or adjustment) also regarding the coice of plugs the 8v XU runs better on single electrode plugs... As to Pugbliss's idle I always thought it was how they were! Share this post Link to post Share on other sites
pugbliss 0 Posted June 25, 2007 yes they are surposed to be a tan colour. if they are black that would surgest you are running a rich mixture which could be down to a faulty AFM or somthing simple like a bad co2 set up. go get it checked out. Share this post Link to post Share on other sites
gti-si 0 Posted June 25, 2007 (edited) Halfrauds part number HCL519, or which ever the letters are before the number, for dizzy caps, the numbers 519. Went in and had a look yesterday. Im gonna replace all the stuff with bosch though, halfords did the job for me to eliminate/find the problem. I got some plugs from a local motor factor, completly useless Edited June 25, 2007 by gti-si Share this post Link to post Share on other sites
M_R_205 5 1 Cars Posted June 25, 2007 yes they are surposed to be a tan colour.if they are black that would surgest you are running a rich mixture which could be down to a faulty AFM or somthing simple like a bad co2 set up. go get it checked out. how do i adjust the fuel mix, is it just a case of screwing the allen bolt on the afm anti clockwise?? if so then its at its outer most limit... Share this post Link to post Share on other sites
stevec205gti 0 Posted June 25, 2007 That'll only do the idle mixture - there is no adjustment for mixture for actual running A common reason for rich running is a faulty temperature sensor (blue sensor around the SAD) - a search for this should come up with the GSF part number for a new one, and resistance values for you to check that it's ok in the first place. Share this post Link to post Share on other sites
