Originally Posted by
taz9372
I've got the same issue mate just trying to work it out myself. mines a little 1.4 fiesta lx 2002 zetec engine. when im driving theres no problem but the moment I put the clut down or go into neutral then the revs drop and car stalls most of the time. Ive tried cleaning out the throttle body, map sensor and changed the crankcase breather valve and hose but still got the same problem. if I pull the breather valve out from behind the manifold and leave the pipe next to the map sensor connected without the valve it idles and revs fine (a little high obv but as fine) going into garage Monday so will keep ya posted
well took it in the garage and 6 hours later I get the phone call, they cant find the problem and no error codes come up on diagnostic, they tell me all they could do is start changing parts which would be costly, so off to try another garage tomorrow