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View Full Version : redtop idle is crappy. super searched, no answers


2fast4y0u
05-26-2010, 07:55 PM
got my rom tune back the other day, so i put it in my car. now it seems like my idle is 400 rpm off across the board.
i have no "warm up" idle. and my normal idle is low.
typically my warm up idle was 1250ish now its 900ish
typically my warm idle was 900ish now its 650-700

i followed this guide:
Start car and let idle until engine is warm.
Hold throttle at 2000 RPM for two minutes.
Turn off engine and disconnect throttle sensor.
Start engine, rev twice to 2000 RPM.
Adjust the idle speed to ~750rp using the idle adjust screw, located near the oil filter.
Shut down the engine, connect the throttle sensor, and start the engine.
The engine should now idle at out 800RPM.


didnt work. today i let the car warm up, shut it off, unplugged the tps and iacv, started the car and adjusted the idle with the iacv screw. got it up to 1000 rpm, shut the car off, plugged everything in and started it back up. car settled to 850....better then before but still not what i want. so i tried it again, and now its back to 650-700.
my iacv screw is back like all the way out.
NOW WHAT?
going racing friday and my car doesnt idle...not good.

JDMRIDDAZ
05-26-2010, 09:18 PM
check the blk/yellow wire at the f9 f10 connectors if s13...
ur iacv power maybe low...mines burned out and my car wouldnt idle but if it gets low voltage it will idle like crap too....
hope that helps

2fast4y0u
05-27-2010, 07:00 AM
sorry forgot to mention its a redtop in s14 chasis. i will check the iacv voltage and see whats up.
i adjusted the stop screw so i am getting .5v with 0% throttle. still same issue