weird idle issues annoying

**maaaaark** · 09-11-2012 07:05 PM

hey guys, i just wanted to ask your opinions about my idle issues that im experiencing.

first off, my car has been swapped to a b18c2 with aftermarket parts put into it like s2 IM, s2 stage1 cams with gears, standard I/H/E, and a chipped ecu .

PROBLEM:

1) fluctuating idle: upon startup , engine runs fine idles back to normal around 1200rpm ( I know its a bit high but if lower than 1k, it will fluctuate and die off on me). anyway, idles at 1200rpm then if given a bit of gas, it will then hunt or when im on a dead stop, it hunts. When car is totally warm or has hit vtec which makes it warm, idles fine.

what has been done: cleaned TB, Cleaned and replaced IACV, checked for vacuum leaks with carby cleaner and smoke through IM, reset ECU, wound up FITV

hoses havent been replaced yet and air in cooling system have not checked.

I have no idea if the valves were adjusted properly or the engine needs to be timed properly. TOOK IT TO HONDATEC 2 times still hasnt fixed the problem . all he does is make the car idle higher lol. I dont know if i should take it back to him for the third time cause the mothaF*&^! made me pay 1200 effin ripoff!!!

I would appreciate your input guys. BTW i read a thread and said that he had the same prob because he has launch control in his ecu. same as me. so yeah. il try that too

**maaaaark** · 10-11-2012 03:53 PM

help anyone!

**chongy** · 11-11-2012 11:33 PM

You have a chipped ecu
What mods is the chipped ecu tuned for?
It sounds like You need to have it tuned to match your mods

**maaaaark** · 16-11-2012 08:13 PM

sadly not yet

**chongy** · 21-11-2012 06:56 AM

check your TPS. It may need to be adjusted.
With the ignition on adjust the TPS to 0.48v with the throttle closed.

**dorikin** · 21-11-2012 07:35 AM

Adjust the valves to spec

**maaaaark** · 21-11-2012 08:04 PM

took it back to hondatec hopefully he fixes it

**anjin** · 21-11-2012 08:45 PM

My analysis based on similar problems is that the idle is too high, and the ecu will be trying to reduce it to normal. So the ecu will wind the revs down, the basic setting will bump it back up, and then the ecu drops it down, etc. Adjust the idle via the throttle body screw down to normal, and you should be ok.

**maaaaark** · 21-11-2012 10:41 PM

Originally Posted by anjin

My analysis based on similar problems is that the idle is too high, and the ecu will be trying to reduce it to normal. So the ecu will wind the revs down, the basic setting will bump it back up, and then the ecu drops it down, etc. Adjust the idle via the throttle body screw down to normal, and you should be ok.

if it goes below 1k idle, it will hunt bro,, car wont let me