my car idles (and holds)at a pulsation 650-900rpms.

I did the LCD tps thing still not much difference.

The problem was a combo of bad hoses a cracked gasket but the major problem was at the primary injectors the O rings and Gromments where all in bad shape.



now whenever I take a hard turn or put in reverse my car chokes out or idles dangerously low .

this also happens when my I press down on the clutch and brakes while in a turn.



I know this sounds like a bad BAC valve but it is not! I have two and both are good.



also I think this car has it's own custom made power steering pump. The previous owner had one made for her. and I think thats why my car orginial idled at 1000-12 rpms



I'm going to follow up and check out secoundary injectors.



I not expection a complete and ominous solution from anyone here. just some clues or a point in the right direction. This car is driving me up the wall and I need some ideas.



86 GXL

i think you're on the right track, but you should look at the backup switch, i'm not sure but the ecu might get that signal too

backup switch?

I managed to take it to a shop and one of the guys told me he adjusted the BAC valve. also he said if the problem remained he said I may need a new IAC switch. (I have no idea what a IAC switch is)



it works alittle better now. the idle doesn't bouce as much but it still chokes out on hard turn but not as often.



I'm I running in circles here or what?

chokes on a hard turn?

yup chokes ouf on a hard turn.

also If I place the car in gear and leave my foot on the clutch the RPMS decrease as well.

oops thats OUT not ouf.

bad afm maybe? the afm door is affected by gravity....



could also be a clogged fuel pump filter/sock my 91 had stalagmites growing from the fuel pump assembly.....



or is that stalagtites?

I believe that would be stalactites. Carry on.

excellent! thanks https://www.nopistons.com/forums/pub...#>/biggrin.gif

Mechanics around here keep refering to a IAC (idle air control valve) which I belive is the BAC valve

I looked in my haynes manual and found nothing about it. I'm I wrong on this one?



I don't know what AFM means



ok I'll check out the fuel pump and swap out the O rings and grommets in the secondary injectors

thx again