Hi all, me and the missus are having problems with our 2.0 16v 1998 manual and have hit a dead end. I've posted this a few weeks ago but this is a fuller explanation.
The car has 80k on the clock and has a good history. I've recently changed the crank sensor as that showed up a code and all was well then a week later the cam sensor code came up and the symptoms started. Changed the cam sensor and cleared the code but the problem remains.
Basically, the engine is pinking like mad and under hard acceleration there is a lot of induction noise but a lack of power as if its being restricted. MPG is brutal at 17 mpg round town.
Heres what ive checked.
There are NO codes.
Cat, pipework and boxes all clear
Plugs and leads changed (2 months before the problem started). There was oil in 1 well but this was cleaned out and hasnt returned.
Breathers checked and all clear
Vac pipes and hoses all checked, no leaks etc.
Air box/filter all ok
No EML on
Headgasket ok.
She idles perfectly, no misfires or rattles and will rev freely under light acceleration but if you push the pedal hard from idle theres a HUGE hesitation, a grunt from the airbox, then it picks up. If the engine is running and you open the airbox, instead of a smooth sucking sound its like there a bass box in there.
I've checked just about everything I can think of and am at a loss as to what the problem could be.
I would be really grateful if someone could take the time to give me ideas for what to look at. The fact there are no codes is puzzling but there doesnt seem to be anything mechanically wrong either.
Hope i'm missing something obvious.
Any help is really appreciated
