I have a hondata s300 installed in a p28 ecu in my 94 del sol and I have a couple questions.

1. How do I set up (wiring) full throttle shift and launch control to work off my clutch switch? I was told the best input to wire it in to wire in to is the psp ecu pin, thoughts?

2. I have an erratic idle constantly. car runs cooler than usual (temp guage only goes up 1/3 to just under 1/2 after freeway driving), how/what do I adjust in smanager to make it idle smoothly? I have changed the eacv/iac to one that worked on another motor.

3. I have an aem wideband, what voltage offset do I use to make the ecu read the same as the boost gauge? hondata's website and forum are no help in this area.

4. I can't get it to datalog automatically without a laptop hooked up. Is this normal? Is there a way to wire in a switch so that when it's on the ecu will datalog?

Any help would be greatly appreciated.

 

Seems like you haven't taken the time to actually look at the settings for these options in the software.

1. Wire from the switch to the psp input, ac input, or other inputs available in the list.

2. Change IACV duty if that's the issue. Fuel and ignition can also be tuned to help idle.

3. Get the datasheet from AEM. You'll have to enter these values manually.

4. Look at the On-Board logging settings. Yes, you can wire a switch, the list of inputs is right there in the software.

 

I have looked, but am not 100% sure on these, so before i mess something up, I figured I'd ask.

1. Which clutch switch and which wire on that switch? I know that I have to cut the psp ecu input and wire it to the clutch switch, but there are 2 clutch switches.

2. Lowered the duty cycle, it's not as bad, but still won't level out. and the idle won't go under 1200.

3. I have the info from aem, tried entering 3 voltage/air fuel points in smanager, but it still reads wrong. Is there somewhere in smanager that allows you to enter more than 3 points?

4. I'll have to look into that more. How would you wire this in?

 

1. The only clutch switch there. The one that isn't grounded until you press it down. Get a multimeter or a manual for this.

2. That's the process of tuning, keep working on it.

3. Find out how much it's off by and change the values that much so it reads correctly. Or read up about using the ELD and removing resistors to stabilize the readings, but you'll still probably need to setup an offset. There's plenty of info about it since most everyone needs to do this.

4. The switch has two prongs. Ground to switch. Switch to the input you're using.

 

I got the idle problem fixed, and think I have a handle on the other things, thanks for your help. The idle ended up being the fitv.

Now I have another issue. The tune that's in the ecu is for a b16a with a jrsc @ 12psi. it ran fine with that motor.

I now have a b16b with the same JRSC set up, but when Vtec is supposed to engage it falls flat, like the motor shut off until I let off the throttle. Any ideas? Is there something different in the way it should be set up?

 

for the aem wideband

afr should be 10.0 15.0 20.0
voltage 0 2.5 5

offset should be around -1 to -1.5

hope that helps

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by postman &raquo;</TD></TR><TR><TD CLASS="quote">for the aem wideband

afr should be 10.0 15.0 20.0
voltage 0 2.5 5

offset should be around -1 to -1.5

hope that helps</TD></TR></TABLE>

Thanks, I'll give that a shot.

Any ideas on the VTEC issue?

 

I hooked up the laptop to the ecu and monitored what the ecu was reading when the motor went flat. Vtec works, here's what I think the problem actually is:

The tables in the tune go to 12psi and 8k rpm. When the problem occured the map sensor was reading 12.9 psi. So there was no fuel map for the pressure it was reading.

So, 2 questions. How do I get the fuel/timing maps to go over 12psi? How do I get the rpm portion of the map to go over 8k?


Edit: I switched the map sensor back to the stock one from the hondata one and it works fine. Could there be a problem with the map sensor or did I miss something in the settings?


Modified by b16_sol_707 at 7:28 AM 10/15/2008

 

The boost cut was set to 13. So when the map sensor hit 13 the motor cut.

I'm not sure how it's making 13 psi.