I have a B16a in my del sol and the car idles like garbage, stays at 1500 surging up and down 100 rpms. If i push on the gas slowly the car will try and shut off and bog out. but if i go past it fast theres no problem....
I ve checked sensors all seem to be fine.
ANY IDEA WOULD BE GREAT!!!

 

Take off the iacv and clean it. If that doesent work then make sure you have no vacuum leaks.

 

I took the IACV off cleaned it i just gotta check for vac leaks thanks

 

CHANGED ALL VACUME HOSES, CAN'T SEEM TO FIND A pcv VALVE FROM AUTOZONE THAT FITS!!!!

 

HELP

 

sounds like a vacuum leak. does your throttle body have an fitv attached under it?

 

yeh it has a fast idle thermo valve.... I know theres a screw inside there Unsure whether to loosin or tigthin

 

changed all vac hoses and IACV....not sure what else to do my ecu is [freak]ed so my friend is rewiring conversion harness today. Hopefully that will do it. Car also runs reall rich so I am insisting its the ecu chip and wiring.
If any suggestions please give em.

 

ok so i know its not a vacuum leak but pretty sure sounds like one its my ecu or chip but when I put a base map b16 chip in car wont start....possible wiring problem

 

A lot of Del Sol's have this same problem, it is probably in the intake IACV or TPS. You cleaned that, but double check the entire system becuase Vacume leaks can hide out in that area.

 

Alright bro I am gonna double check. Thanks