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View Full Version : Difference's the J32a2 Auto and Manual J32a2 Motors


RPM SYSTEMS
06-19-2009, 03:38 PM
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hondaboy4life
06-19-2009, 03:48 PM
thanks for the info. good luck finishing the swap.

Sparkks
06-19-2009, 05:04 PM
So the reason your doing all this work is to have the car free of codes and able to be scanned right?

Why did you have to change all those parts you have listed to get it out of Limp?

I sure hope theres a way around this....

skandal57
06-20-2009, 06:02 AM
How can i check to see which enigine and harness i have? there was no flywheel or tq converter installed and the motor is on standby while i source everything else. its a j32a2 with full harness to the ecu i dont have :(

junior78
06-21-2009, 04:36 PM
i wonder if this goes for the j35a1 as well

e46civic
06-22-2009, 09:45 PM
It looked to me like the auto tensioner is also differant between the 2 motors, at least going back and forth on acuraautomotiveparts. I pulled my front head yesterday.
Nevermind, I was looking at the wrong Number.

skandal57
06-24-2009, 04:43 PM
what are the cons to running an auto ECU with a manual transmission? will it run fine and redline the same?

Becoming
06-27-2009, 07:43 PM
What about using an auto engine, harness, and ECU...you wouldn't have to change all them parts then would you?

Sparkks
06-29-2009, 09:36 AM
What about using an auto engine, harness, and ECU...you wouldn't have to change all them parts then would you?

^^Thats what I'm saying. Remove all the unwanted Auto trans wiring and call it a day.

crxtc76
07-04-2009, 10:48 PM
What about using an auto engine, harness, and ECU...you wouldn't have to change all them parts then would you?

I wish... This is the place where I am at. I have the complete auto J32A2 swap with an 06 TL-S 6speed, and the ECU goes into limp. :( However, I can run the 3.5 ECU from API, and it runs just fine, but losing the top end and it's WAY rich.

jproy
09-16-2009, 06:38 PM
FYI, The grinds on either the exhaust or the intake lobes are slightly more aggressive on the J32A2 from a manual car than from an auto car. The part numbers are different for the manual cars which confirms this but it is such a slight difference it does not make a difference power wise from what I can tell nor is it necessary to change the cam shafts when doing the swap but since this thread is called the differences thread I thought I would mention it. The oil pumps are also slightly different but do not need to be changed either.

The conversion for an auto motor to work on a manual ECU is very easy to do and shouldn’t take you more than an hour or two with the engine out of the car.

If you have done this swap and changed all the parts previously mentioned and are still in limp mode and are using an aftermarket clutch or installed a new one, make sure the clutch is lined up properly as it is mounted to the crank shaft. One of my friends spent $4K trying to figure out why he was in limp mode before realizing the CKP sensor B was getting improper readings from a misaligned flywheel. The J32A2 on the manual cars has two CKP sensors. One on the back of the trans housing for the flywheel (CKP B) and the regular on the timing belt crank pulley (CKP A).

Autoxprelude
02-20-2010, 02:30 AM
I checked the vendor forum and didn't see this info. Any idea where it went?

RMXmitch
02-24-2010, 06:50 PM
I checked the vendor forum and didn't see this info. Any idea where it went?

X2 seems there has been alot of info lost in the "switch"

RMXmitch
03-01-2010, 05:32 PM
fixed the post ....YEA!!!!

gracias

Viper
03-01-2010, 06:46 PM
FYI, The grinds on either the exhaust or the intake lobes are slightly more aggressive on the J32A2 from a manual car than from an auto car. The part numbers are different for the manual cars which confirms this but it is such a slight difference it does not make a difference power wise from what I can tell nor is it necessary to change the cam shafts when doing the swap but since this thread is called the differences thread I thought I would mention it. The oil pumps are also slightly different but do not need to be changed either.

The conversion for an auto motor to work on a manual ECU is very easy to do and shouldn’t take you more than an hour or two with the engine out of the car.

If you have done this swap and changed all the parts previously mentioned and are still in limp mode and are using an aftermarket clutch or installed a new one, make sure the clutch is lined up properly as it is mounted to the crank shaft. One of my friends spent $4K trying to figure out why he was in limp mode before realizing the CKP sensor B was getting improper readings from a misaligned flywheel. The J32A2 on the manual cars has two CKP sensors. One on the back of the trans housing for the flywheel (CKP B) and the regular on the timing belt crank pulley (CKP A).

I am that friend!

JaysS01
03-28-2010, 07:48 PM
so does this info only apply with the j32a2 or does this go for all j series motors like the tl-S and j35 aswell ?

J Roc key
04-28-2010, 05:30 PM
So I have what I beleive is a auto j32a2 engine, harness, and ecu... Is converting my auto engine to manual a must if I want to run a six speed tranny? From the info I got I do not need to convert but that's what's the pros and cons of doing so. Also I was wondering if someone could tell me if this in fact is an auto ecu

http://i6.photobucket.com/albums/y219/Pishpeng/01b24606.jpg

SIRP
05-17-2010, 01:36 PM
what about using an auto engine, harness, and ecu...you wouldn't have to change all them parts then would you?

i am new here n asking same ? Well i have for my swap a 01 cl type s auto engine harness n ecu using a accord v6 6 spd tranny what do i have change

phat4door
05-26-2010, 05:29 PM
So I have what I beleive is a auto j32a2 engine, harness, and ecu... Is converting my auto engine to manual a must if I want to run a six speed tranny? From the info I got I do not need to convert but that's what's the pros and cons of doing so. Also I was wondering if someone could tell me if this in fact is an auto ecu

http://i6.photobucket.com/albums/y219/Pishpeng/01b24606.jpg

according to Don's Thread your ecu is a 6spd manual....http://www.j32a.com/showthread.php?t=428

H22Ej1
06-21-2010, 01:44 AM
they only made one manual j32a2 motor in 03. the car is a 03 cl type-s manual 6 speed. all other motors before that time were auto motors. so that goes for all j series before 04. in 04 is the DBW setup and all the motor are built with the same sensors if it is manual or auto.

don
rpm systems

so swapping the listed parts for a j35a4 will effectively convert it to run off a manual cl-s ecu and be compatible with a manual transmission correct?

valpo500
06-21-2010, 08:24 PM
so... the physical changes in the engine are mostly for the manual ECU compability or needed for the engine to work correctly???



I'm investigating the idea of managing the J32a2 with OBD1 ECU?? is this possible?

InvaderTrax
07-31-2010, 05:32 AM
yes it is possible to do this if you convert it back to dizzy . which only one year came that 98 accord v6 3.0 .
now as firing the injectors you have to wire them up to a (4) opto-coupler's (4n25) , (2) TIP120 npn transistors , and a couple of other resistors . with that little circuit you can batch fire the injectors . 1 3 5 / 2 4 6 . you will have to play with the warm up cycle but if you can do that you be straight.

there is more info on a other thread about the AEM 30-1050 / 30-1040 ecu . look up there for more answers.

What about maybe using the ECU from a '95 V6 Accord or Legend? And will the distributor from a '98 Accord simply bolt up to the J32? And then just wire it up from the coil plugs or what?

ronmaster901
10-25-2010, 12:32 PM
I have seen this question asked before in this thread, a couple times, but i have not seen a direct answer to it.

What exactly is the purpose of running these manual parts on an auto engine?
Vtec? Codes? Computer issues? Sorry if i missed the answer...

Also, I know a J32a2 is a J32a2, but can you put these manual parts from a Cl-s onto an auto engine that came out of a 02 TL-s?

H22Ej1
10-25-2010, 10:14 PM
yes these parts will convert a tl-s auto to a manual. they can also convert the j35a4 odyssey motor to manual.

from my gathering mating an auto motor with a manual trans and an auto ecu yields some transmission codes (obviously) but i dont belive they affect its driveability. it also seems that some users didn't like the idea of essentially tricking the ecu to be in drive all the time. outside of that i haven't heard of any downsides.

if there are other issues i would like to know as well, id rather save up for the aem ems than wire in my odyssey ecu and have problems

boostedstd
11-17-2010, 03:10 PM
so if an Aem standalone was bought, would you still have to buy these additional parts to convert your auto motor to manual, or do u only have to do this if your running a stock manual ecu, because the additional parts will cost bout $400-500 thats almost half of just buying a AEM standalone,kinda confused??? And is there a certain AEM standalone to buy when converting an auto motor to run with a manual tranny?

LKSi
11-17-2010, 07:32 PM
so if an Aem standalone was bought, would you still have to buy these additional parts to convert your auto motor to manual, or do u only have to do this if your running a stock manual ecu, because the additional parts will cost bout $400-500 thats almost half of just buying a AEM standalone,kinda confused??? And is there a certain AEM standalone to buy when converting an auto motor to run with a manual tranny?

No, the AEM is designed to work ONLY with the motors that were originally auto and the auto engine harness. AEM employees have posted up on here several times about it.

boostedstd
11-18-2010, 01:43 AM
ok, so the an auto motor with a 6 speed tranny would be good as long as the standalone is used,correct?

civicking
12-14-2010, 05:25 AM
So from what i gathered and please correct me if im wrong, but auto j32a2 with auto harness and auto ecu would be fine but will throw codes?

HickamHatch
12-15-2010, 02:30 PM
What about using haltech and making a custom harness? Are the plugs any different that go into the manual trans?

chops
01-26-2012, 03:08 AM
When changing your j32a2 auto motor to a manual motor,do yo have to change the oil pump with the other parts ? I will be using all manual 03 cl type s parts.