ok first the sparkplug wires were crossed how the hell it was running i have no clue!
but it ran like this for almost a year, ! then i put them in the rite spot it runs good and all now kinda but at low idle is sounds choppy as hell and runs horribly but when i get around 3,ooormps it runs pretty damn well but still sounds like total **** but at 3000 or 4000 rpms it will roast the tires lol but still sounds like ****!

heres the specs

1988
GXL
N/A
nothing else done to it

does anyone have any ideas on what it could be ??????

 

I would look into air leaks into the intake. They can be in the plenum, gaskets and vacuum hoses. If there is ANY unauthorized air getting in (i.e. anywhere downstream from the AFM) then it will idle wierd (if at all) and can run really crummy.

I fought a squirelly idle on my '87 TII for quite ages. Each vacuum/air leak i fixed made it a bit better. Finally got it to idle at 1100 - best I could do. Then more exploring found a small split in the plenum right where it enters the turbocharger. Fixed that and put a good tight clamp on the hose and then the idle settled down to a rock solid 750rpm. And now it runs quiet fine (especially considering it's at 220K miles).

Idle is just one of the things that can go bad from vacuum leaks. Check ALL the rubber!

- k -