ok before I get started you might want to go smoke get a drink or some head or what ever you need to do and im only saying this because I got some stuff to go over and it might take me a min to get it all out and make since.

NOW thats over lets get started.



OK! I just fully built my b18c1 and after going threw a million problems i finally got it going but I need to know a few things about these ecu's p05 p06 and p28. When I bought my car in a million pieces i was also givin what I was told to be a chipped p28 ecu so after putting a new chip in it and got the car half *** running right it still runs ruff at an idle. So on to doing hours and hours of research i come to find out that my ecu is not a p28 its a p05 with the board number of (02D01720-1500) converted to a p28 "if this is possible" and I found out my board is a p05 by "this chart". Now i do know that it has been converted and chipped but when I ordered my chip i told them it was a p28 ecu not sure if it makes a difference because it was converted or not but even with the new chip it runs kinda shitty.

so on to the next step.

My friend came by today and brought a ecu with him that is a stock 0bd1 p06. so i unplugged my chipped ecu and plugged in the p06 and the car ran like a brand new car right from the startup. I took it for a spin and it ran like I never seen it run before. So this mad my day and I bought the computer from him. now iv done some more research in the past few hrs and found out that the p06 is the same exact thing as the p28 except the p06 is not equipped with the vtec controlls. While driving i didn't pay attention to if vtec kicked on or not because i was to excited to see my car run like it did but im pretty sure it never kicked in after doing my research.

Now im wanting to know will it hurt my car by running the stock p06 ecu without converting it to vtec until I can find the kit to convert it? my motor is a fully built none turbo b18c1 GSR.

Also does anyone have a link to where I can buy the kit to add vtec and if I ad vtec to the p06 doe2 it then make the ecu a p28?

p06 ecu board number# 02D011F0-1500


I have referenced from a few sites but no real answer for my application so i figured id ask in my own words so I will be able to better understand the answers.
THIS IS MY CURRENT P05 ECU I GOT WITH THE CAR I WAS TOLD WAS A CHIPPED P28. I dont know what the parts are but I know the 2 ecus are a bit different so if someone can answer to me by the arrow colors whats what and if I need the exact same thing in my new p06

Picture 1 the chip area

this is the vtec conversion area


this is the new po6 ecu

Picture 1 the chip area

this is the vtec conversion area






thanks in advanced

 

First page of google results, look what popped up...

http://www.xenocron.com/vtec-convers...ecu-p-278.html

AND you can select 1720 or 11F0 right on the page. How convenient.

You then need a program that runs VTEC, which you can probably get them to make for you when you order your chip kit, which is also available on that store. Shoot them an email if you're still unclear about anything.

 

thanks bro but let me ask you this if you mean program as in a new basemap that allows the ecu to run vtec "maybe a dumb Q" how do i get it on the ecu?

 

Yes thats what he means. Even if you chip it, without a basemap that supports Vtec your car will still not have Vtec. The only way to get it onto the ecu is burning it onto a chip and placing it where the 28 pin zif socket sits. Or run Neptune

 

ok so I cant just ad vtec conversion? I have to chip it in order to make the vtec conversion work then?

 

can someone clear up 1 thing for me if I run the stock p06 ecu until I can get it tuned on my chipped p05 converted to p28 will it hurt or affect the car in any way other then not having vtec?

 

http://xenocron.com/install/

Read. and for your other question. Yes you can drive it but do I recommend it, No. A p06 does not provide enough fuel for your motor setup. Especially if you are FULLY BUILT.

 

Since a stock P06 has fuel and timing maps for a 1.6L SOHC motor, and you are running a 1.8L DOHC VTEC that makes a drastically different amount of HP yes, you "COULD" hurt it.

If you baby the car, and there are no check engine lights and all you ever drive the car is in PART throttle, then you should be OK. The o2 sensor will correct for the difference in fuel requirements and add fuel through the ECU, and the part throttle timing is close enough and the fact you have very little cylinder pressure at part throttle will allow you to get by.

If you already have a chipped and converted P05 ECU though, just get a basemap from your tuner, set up your appointment and get er tuned!

 

ok kool I understand that. and getting a basemap and getting it tuned is my problem I dont have the money for it right now and the closest place for me is dallas 3hrs away and 500 to get it on the dyno.

anyone got a 4 pin to usb cable to plug into the ecu so I can play with it im interested in getting one if someones got one pretty cheap or looking to trade something for it?

 

You cant tune without a wideband

 

yea I know i still need to get one.

 

4 pin datalogging cable is only for datalogging...you cant play with anything or change anything

 

this may be a stupid questio but is a p28 ecu obd1??

 

Welcome to the Honda world. LOL yes it is

 

haha thanks cus i found one with s300 in it pretty cheap but wasnt sure if it would work with my h22 which is obd1, and yes im very new to hondas but not cars :D Current project is crx with an h22a swap and in process of getting all new oem black interior to keep it looking stock :D

 

Most are, there is an OBD2 P28 found in the '96 - '97 Del Sol Si, although i'm guessing its basically just a P2P ECU with a different part number.