Hondata

Mine didn't act up on crome....that was the weird thing. And crome didnt mind that my tps wires were mixed up either. But the s300 was going nuts over those 2 things.

I was just looking through the help files before I seen your post and you are correct. This is adding 100% more fuel than what I already have. HOLY SHIT!!! But its the only way I could get the car to run, and it ran damn near perfect (Shrug)

I was street tuning my car last night and I had my launch control set to 3500rpm but I noticed that the tach wasn't reaching that high and it was coming back up very slowing compared to other launch controls I have used and seen. So I started looking through the help section and came across this in ...

Ok, I have figured out a few things. They reason my s300 was acting all ufunny was my damn shorting out main relay.

The reason my lambda overlay wasn't working was because I had my wires on my mustang tps hooked up wrong. I followed the instructions on honda-tech on how to wire it up. It was way ...

My problem I figured out was a main relay that i had to hit the dash to get it to kick on. But after I got that fixed I tried to start my car and it wouldn't start either. What I didn't realize is that on crome and the older hondata systems when you change injector size, that it automatically ...

Well I got it running. But for some reason I can't get it to fill in any values in the lambda values in the tables. Under sensors, its reading the voltage. I set the settings according to method #2 http://www.hondata.com/techplxwiring.html
But I have a aem uego. I used it with my other hondata. Is ...

I have been having problems with my main relay the last few months. Friday night it decided it didnt want to work at all any more, so I replaced it that evening.

I have a 75-70mm mustang tb with a mustang tps. It has been hooked up exactly the same for over a year, So today when I got home from ...

It could be interference either from the spark plugs or a missing ground.

If possible swap to stock spark plug leads, check that the plugs are resistor type, and also check in the distributor cap that the carbon resistor has not cracked.

It sounds like you have already checked the grounds, but ...

Do you have an OBD0-OBD1 conversion harness and the extra wires wired up right?

I did have a harness. I removed it saturday and hard wired it to obd1. I used 4 different schematics to make sure everywhere was correct and intact. It took me 12 hours to do. I hooked the s300 up after ward. There ...

Hondata wrote:Follow this guide

It sounds like J12 was not cut.

J12 has been cut. And i followed all those steps besides 8. The error codes keep changing. Even ones i have disabled....such as vtec codes. And i have a non-vtec map with vtec disabled...lol

another thing i thought of is that my s200b was on a p75. crome is on a obd1 pr4 and the stock ecu i tried was a p75. my s300 in a p06. i know it shouldnt matter but would having the p06 on my car require a wire in a different spot?

I have a 88 CRX DX that i converted to mpfi. I orignally had a s200b on a stock LS. It ran perfect. I pulled that motor out and put in a fully built 2.0 LS. I decided to sell the s200b and run until i was able to afford a s300.

I got the s300 about 2 weeks ago. I put it in and it uploads fine. But ...