Alright please do not flame first off i have spent alot of time trying to figure this out.. My car is idling at about 1,200 rpms and i am getting about 16 MPG. Engine is H22A4. Id like to lower the idle but cannot figure out why its idling so high, few things i have come up with are...
*Timeing is off?
*Needle valve is not adjust properly? (check below is the red zone even the right adjustment for idle?
*Vacum hoses off somewhere?
* i dont know? Just a few thoughts.
-Brand new spark plugs and wires. The car also backfires from the cat when i shift down around 2,000 rpms. Sounds cool but hurts the walllet, n e help please!?

 

What kind of gas are you using? Also, make sure your spark plugs are in the right firing order.. 1 3 4 2.

 

gas is premium from shell lol. and yes plugs are in correct order.

 

to set the idle the is a procedure you most follow ... It involve your idle screw if u will located on your throttle body ...

i'm sure a search on HT or google will give u a how to thread or if u can get a hold of a bible a.k.a. helms manual

your idle could be high because your IACV is clogged up witch seem to be the vavle in your picture ... I am not fimiliar with the h22a4 however

I would recommend cleaning your IACV and your FITV ( Fast Idle Thermo Valve) assuiming the h22a4 has one (it should be located underneath the throttle body area) and then setting your idle following the procedure I mentionned.

 

Sweet got her fixed. Thanks guys! I took the IACV and FITV off and cleaned them both out and flushed the coolant system and adjusted the screw. Not sure which fixed the problem but she idles perfect now