Printable View
I've found that increasing the IACV duty cycle causes the engine to have more of a tendency to bounce around near idle, especially after coming to a stop.
I've had the best results with target idle set to 800, and IACV duty cycle set to 2 clicks to the left (from the middle).
Sonny
------------------
Sonny Van Hook ([email protected])
2000 JRSC'd Civic Si @ 6psi (Powered by Hondata)
1999 Tonykart/Honda 80cc Shifter (For Sale)
the fluctuating idle seems to be caused by the engine dropping below target idle, so the IAC rev's and goes up to an rpm range so the ecu raises the timing.. from the datalog i got from randomwalk's car it would jump from 17 degrees up to 25, then back to 17.. mine almost idles right and my timing is 17 at 725, 18.5 at 925 and 21.25 at 1175 and IAC normal duty.. hope this helps you guys out..
------------------
I spoke with Tom briefly on Saturday about this problem. In speaking to him I realized I didn't plug up the hole from the map sensor. I hung up the phone thinking that would do it. It didn't.
Low and behold, Monday I received an email from Doug at Hondata offering a chip program which would fix the problem.
My burner/emulator is coming shortly, then I'll provide an update.
As for the Tach, Tom mention he has seen it before, and a pin may need to be moved in the harness. He also mentioned he actually had to run the tack wire out to the distributor once.... again, update to follow.
------------------