car still running like crap, please help

[Tiger]

hi, basically when i turn my williams on the revs will sit at up over 1000 for a couple of minutes, then it drops right down and chugs chugs chugs before shooting up tbuger all over 1000 then it does the same chug chug chug as if its gonny cut out, when its chugging its taking alot of air into the k+n.

ive just replaced the ignition leads and took the ICV out and gave it a good clean and its done bugger all :-(

also sometimes when im driving along the revs will drop too and then it pulls away again as if its on an elastic band, this has been doing this for ages and its now driving me mad, it also revs up and down when i pull up to a junction or traffic lights, without my foot even near the pedal, any help will be appreciated, i dont really want to have to take it to a garage and get ripped off, so any help would be great



thanks

Tony

 

[Tom]

fuel filter been changed?

 

[Tiger]

nope dont think so although it had a service about 2 months ago, would it be replaced then, it was only the 60,000 one, do you think it could be the carburattor or however u spell it lol

 

[JAY172]

maybe try replacing the idle valve first.leave the battery disconnected for 10mins before you plug in the new valve.

 

[Dansta]

sounds a it like what deans was doin ealier tonite, sounded mental, were all standin around chattin whilst its warmin up, itll chug as if goin to cut out, then will rev!! as if someone has just hit the Gas to rev it. bit eery lol.

he might know

 

[RS-Steve]

could be totally dif but my exs car had similar probs an it was summat to do with compression loss in 1 of the cylinders! prob nothin of the sort but thort id post it anyway!

 

[iPap]

Quote: Originally posted by JAY172 on 03 February 2004

maybe try replacing the idle valve first.leave the battery disconnected for 10mins before you plug in the new valve.

This is what Dean was saying, he didnt do it the first time round so has to get a new one and do it this way!

 

[geoff_clio182]

Tiger - Try replacing the lambda sensor on the car. I know 2 people (one with a Williams and the other with a 16v) who had this exact same problem cured by replacing the lambda sensor.

BB Tuning should be able to do it if you live in the Essex area.

 

[Tiger]

miles away in scotland, i did think it was maybe the lambda as i had similaer problems with my xr2i ill get my mates dad whos a mechanic to check it out b4 i go spending, but i think its prob gonny be this icv or the lambda, thanks for the replies

 

[Tiger]

Quote: Originally posted by DannyBoy on 03 February 2004


sounds a it like what deans was doin ealier tonite, sounded mental, were all standin around chattin whilst its warmin up, itll chug as if goin to cut out, then will rev!! as if someone has just hit the Gas to rev it. bit eery lol.

he might know

thats exactly what it does!! do you think u could speak to dean and find out if he gets it sorted and what was causing it, cheers mate