i decided to put my induction kit back on to me valver but the problem is when dropping throught the revs its juddering shaking and when pulling of in first the car hesitates like its choking or about to go off similar to not responding to the throttle it will then kick in and be okay once you start driving if you release the clutch slowly in first holding the revs high it will pull off with out showing any signs of chocking.
i have carried out the breather mod injectors ultrasonically been cleaned cold air pipe going to induction kit used carb cleaner also cleaned out idle valve and checked its working any suggestions why this may be happening.
i cant use a panel filter as the valver is in a cavalier mk2 and the panel filter boxes will not fit i was able to attach the old cav 1.8i box and filter to the valver but i dont think enough air is getting in as i have to leave the existing air flow meter attached to the box which is probably restricting the air and the exhaust is badly sooted up.
i do have a boost valve in the garage but do you strongly recommend i dont use it can i not just get it adjusted on the rollers.
Many people think that boost valves are worth their money. I don't and I'm not alone.
I had one of my nova GTE and after a little time it 'choked' it. 0ddball has an uprated fuel regulator on his GTE and that has all the plus points of an FSE and few of the drawbacks since it wont need direct adjustment.
However I always think it's better to find the root of the problem first before you try to counteract what might be the problem with other mods.
If you have checked all the basics, looked for tears or holes in pipes, cleaned up all the common problematic parts and things then it might be time to get it looked at professionally. A few quid spent now could save a lot more later.
Hope you can sort it soon.
P.S My standard 16v GTE splutters a bit if you leave it in 4th and go below 30mph. My standard Cav GSi didn't so sometimes they are just a little different.
I had exactly the same problem on my Cav GSI when I first installed the kit. I found the best answer was to take it back to the shop and purchase a ramair or pipercross which seemed to go on and work fine without making any other changes.
Well I know the previous owner of my car had troubles with the induction kit, basically the same symptoms as you are getting. He took the kit off. when I brought the car I thought I would try it again. Considering the only thing I had changed on the car before putting the kit on was a service and changed the backbox. and (touch wood) don't seem to have experienced any problems so far. although I did disconnect the battery when changing the kit as I did a couple of other things to the car, whether that would have made a difference I don't know.