ECU H22A - Pinouts?

FastRCars

Member
Well i dont know..i get a little confused when looking at my ECU to the H22 i just got..

Is it a regular OBD1 ECU?..shouldnt there only be 3 "plugs" ? this one got 4..

Have a look at this pics below..


BTW..can any one tell me which cabels who needs to be wired up on a NON-VTEC Civic DX? i got no prewired cables at all..cause there were a 1,3 Engine there before (EG Chassie)

/ J

 

posol

RETIRED
Staff member
thats from a jdm prelude that came with either rear wheel steerting or was an automatic ecu.
i have no experience with it, so i have no idea if it will work or not
 

FastRCars

Member
Originally posted by pissedoffsol@Jun 28 2005, 02:39 PM
thats from a jdm prelude that came with either rear wheel steerting or was an automatic ecu. 
i have no experience with it, so i have no idea if it will work or not
[post=517304]Quoted post[/post]​



Aha..hm..anyone else got any clues?

Whats the diffrents Between JDM / USM ECU´s ? if we take P13 for an example..

And why r JDM at 200Hp and USM 190Hp? diffrents in ECU?
/ J
 

posol

RETIRED
Staff member
different cams, pistons, compression, and ecu are the biggest differences.

IMO, i'd try to find a usdm ecu. they are usually eaiser to work with
 

FastRCars

Member
Originally posted by pissedoffsol@Jun 28 2005, 05:24 PM
different cams, pistons, compression, and ecu are the biggest differences.

IMO, i'd try to find a usdm ecu.  they are usually eaiser to work with
[post=517364]Quoted post[/post]​



ehm..i got a Spoon chip to the P13 ECU...it will release the Speed limiter and set Vtec @ 5500rpm..

Got a degree in electronic welding so it shouldnt be any problem

Its just the ECU pinout iam interested in..
 

dohcvtec_accord

WRX Sellout
Cams are the same. Pistons are different, which explains the difference in compression. ECU is probably different, but I don't know in which ways.

IMO, get rid of the Spoon chip. It's more likely to hinder your performance than help it. Getting rid of the rev limiter is a terrible idea, unless you've upgraded your valvetrain.

EDIT: Why would you want to set VTEC higher? It's already too high, it really needs to be right around 5000 rpm.
 

FastRCars

Member
Originally posted by dohcvtec_accord@Jun 28 2005, 05:34 PM
Cams are the same. Pistons are different, which explains the difference in compression. ECU is probably different, but I don't know in which ways.

IMO, get rid of the Spoon chip. It's more likely to hinder your performance than help it. Getting rid of the rev limiter is a terrible idea, unless you've upgraded your valvetrain.

EDIT: Why would you want to set VTEC higher? It's already too high, it really needs to be right around 5000 rpm.
[post=517367]Quoted post[/post]​



Well i talked about the SPEED LIMITER...not the Rpm limiter..i dont want to travel in 180km/h all time..

For the RPM...i´ll have to put a electronic rev limiter cause the SPOON sets it to 9000RPM..


What do u think about the ECU then?...pinout´s...
 

dohcvtec_accord

WRX Sellout
I know what you said. I also know that knockoff Spoon/Mugen/whatever chips bump your rev limiter up to unsafe ranges. Hence, my comment. Putting in an electronic rev limiter is a safe idea.

I also stand by my comment about it hindering performance.
 

FastRCars

Member
Originally posted by dohcvtec_accord@Jun 28 2005, 11:39 PM
I know what you said. I also know that knockoff Spoon/Mugen/whatever chips bump your rev limiter up to unsafe ranges. Hence, my comment. Putting in an electronic rev limiter is a safe idea.

I also stand by my comment about it hindering performance.
[post=517582]Quoted post[/post]​



Ok i see...so what should i do to get rid of the Speed limiter?
 

FastRCars

Member
Originally posted by pissedoffsol@Jun 29 2005, 08:23 PM
buy a p72, and get it custome chipped/tuned with crome :)
[post=518145]Quoted post[/post]​


*s*

anyway..i got the answer for my thinking about the ECU:

" Hello, if the code is 37820-P13-N51 than it is a automatic, if it ends in 001 or 003 than it is a 5-speed. "

So..i guess it could be 4WS "controlled" , but would it concern me? , can i use the same pinout diagram for 92-95 OBD-1 Civic/Integra as hosted in the tech forum?

or should i get one from the lude?

// J
 

FastRCars

Member
Well i suppose OBD1 is the same for every VTEC car so..i´ll do the wire and see what happens , and then i´ll go from there , btw i bought a new harness because my "dx" 1,3L harness was useless..

so rock n roll
 
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