I installed the Stage 2 Hondata last night and there are a few problems concerning the idle. It was set to 750 RPMs.

At times, it will idle at 500, other times at around 750...but the car seems rough...not smooth and quiet like the stock ECU.
The other problem is that sometimes the idle surges...while others it doesnt. It did not do this at all with the non-Hondata ECU.

Any ideas?

 

you might check your fuel pressure and see that it matches the pressure that the rom was set up for....

-davew

 

i remember reading else where others having this problem but i am pretty sure there is a fix for it....i know i am not being much help but jsut want to give you some hope that it will be fine once someone gives you the correct answer....maybe try vaportrail on this board, he seems to do alot with hondata...

 

Go over to Hasport and have Joe adjust the idle and IAC duty cycle w/ his stage 4.

 

Yea Im going to have to wait till after the 16th to have Joe do some tuning.
Right now he burned the ITR w/JUN3 cam program on there and to tell you the truth its running like ***. Feels way slower then with the Mugen P28 I was running before...when I accelerate it feels like its falling on its face.

 

Did you get datalogging?

 

Nope...just a Stage 2 for right now

 

What injectors are you running?
Isn't that program meant to run stock injectors?

 

Yes Im running 240cc injectors @ 60 PSI fuel (Joe said that is what the program is set to run)

 

have you tried adjusting fuel pressure?

 

I set the pressure lower (cant go any higher then 60) and the car felt like total ***...it was bearly accelerating. Damn I need to get this thing tuned!

Maybe a VAFC w/ chipped P28 would have been the better choice.

 

forget about how the car feels. Your injectors are too small to make that motor
feel halfway decent. right now you are concerned about idle and drivability.

 

I did mean drivability acceleration..not racing.

 

You NEED 310s to run a B20. No questions asked. That's a RULE.

Come on Val, of all people.. you should know this.

But if you're in dire need of injectors, and feel safe w/ 270cc RC's.. I got a set.

 

Hey Mike...how about 97+ Prelude injectors...290cc direct bolt it...think tha twould work well? Know anyone selling some?

If not I might do some GS-T Auto injectors wit ha resisitor box.

 

If the 290cc Prelude injectors are high-impedance they will work fine.
If you can get them cheap, by all means go for it.

But if you've gotta spend like $250.00+ for them.. just opt for 310s.

Hell, since you got Hondata.. you might as well get some RC 370cc injectors.
I think they cost only $7.-8.00 more per piece than 310s.

 

I rememeber a while back someone had some 97+ Prelude injectors for cheap..damn I wish I would have picked them up (yes they are high impendence)

 

i believe im running ITR injectors on mine, dont they flow like 270 or 280?

 

ITR injectors = 240cc