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J35a3 swap questions

 
Old 04-29-2019, 06:31 PM
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J35a3 swap questions

Hello!

I've been doing some research on here because I'm interested in a j35a3 swap but not for a CL-S but a civic. I think the same things should apply except a harness merge.

Right now I'm thinking the plan is to go

J35a3 stock
RL cam
J37 intake
6 speed manual
CL-S manual ECU

Just like of you guys I'm interested in going a true manual set up. When I did the math and really thought how much I would gain by going AEM imo it just wasnt worth the pedestrian gain. I've seen some of you guys have successfully swapped j35a3s into your CL-S.

Did you need to swap out the auto sensors on the engine for the j32a2 sensors? I dont beleive they would be plug and play. I know the auto type S and manual have different sensors. Is there any other parts that need to be replaced?

Also, locating a CL-S manual ECU seems to be my biggest road block atm. Locating one has not been easy and I'm not sure how much theyll cost. All I know is that itll be far cheaper than the AEM one (hopefully) lol.

Any advice where to find one? Thanks!

This seems to be the easiest way to go in terms of stock power on OEM parts.
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Old 04-29-2019, 07:21 PM
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Originally Posted by Acuranoob23 View Post
Also, locating a CL-S manual ECU seems to be my biggest road block atm. Locating one has not been easy and I'm not sure how much theyll cost. All I know is that itll be far cheaper than the AEM one (hopefully) lol.
Go to car-part.com, enter the criteria for an AcuraCL; Engine Computer for a Type-S, MT into the search fields, I found one whole page (total of13) of ECU's nationwide.
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Old 04-29-2019, 08:44 PM
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Originally Posted by zeta View Post
Go to car-part.com, enter the criteria for an AcuraCL; Engine Computer for a Type-S, MT into the search fields, I found one whole page (total of13) of ECU's nationwide.
I'm using the mobile site and haven't found any options that allow you to both search for CLS ecu with manual tranny options.

Maybe I'm just dumb and not seeing it

All I'm getting for search criteria is:

Year
Model
Part
Zipcode

Other than that, my set up should work right? Do you know anything about sensor conversion or is it plug and play with the cl-s manual harness?

Thanks!
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Old 04-29-2019, 09:11 PM
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Originally Posted by Acuranoob23 View Post
I'm using the mobile site and haven't found any options that allow you to both search for CLS ecu with manual tranny options.

Maybe I'm just dumb and not seeing it

All I'm getting for search criteria is:

Year: 2003
Model: AcuraCL
Part: Engine Computer
All Areas/Select an Area
Sort by Distance/Select Sort
Zipcode: Your Zipcode

Other than that, my set up should work right? Do you know anything about sensor conversion or is it plug and play with the cl-s manual harness?

Thanks!
You need the following from a MT J32A2 to make the auto J35A3 six speed compatible when using the MT ECU:
CLS6 engine harness
CLS 6 speed transmission with crank sensor
Crank TB pulley; CRK sensor; TB stopper plate
Front Head Cam TB pulley; and the TDC cam sensor assembly & sub harness
The water jacket and connecting pipe from the J32A2 is different from the J35A3 and the Map sensor on the J32A2 throttle Body is different from the J35A3. I believe the egr valve assembly is different as well.

All of the above can be cross referenced thoroughly by using the 'search' function. Everything you need has been talked about many times here on this forum.

Last edited by zeta; 04-29-2019 at 09:19 PM.
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Old 04-29-2019, 10:27 PM
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Originally Posted by zeta View Post
You need the following from a MT J32A2 to make the auto J35A3 six speed compatible when using the MT ECU:
CLS6 engine harness
CLS 6 speed transmission with crank sensor
Crank TB pulley; CRK sensor; TB stopper plate
Front Head Cam TB pulley; and the TDC cam sensor assembly & sub harness
The water jacket and connecting pipe from the J32A2 is different from the J35A3 and the Map sensor on the J32A2 throttle Body is different from the J35A3. I believe the egr valve assembly is different as well.

All of the above can be cross referenced thoroughly by using the 'search' function. Everything you need has been talked about many times here on this forum.
Oh man I'm totally dumb lmfao. Embarassing as I though the CL-S 6 speed came in all 3 years the car was in production but it seems like it's only 2003.

And the transmission MUST be a CL-S 6 speed? I'm feel like I'm almost better off looking for a used 2003 CL-S 6 speed and do direct swap.

Dont got any sites to find if of those do ya? Lol. I'm from Wisconsin. Nothing good is close.
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Old 04-30-2019, 05:43 AM
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keep your eyes on craigslist.. i had seen 3 that had popped up in the WI/IL area's...
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Old 04-30-2019, 11:39 AM
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Originally Posted by Acuranoob23 View Post
And the transmission MUST be a CL-S 6 speed?
If you want to run the CLS6 ECU, you need the crank sensor at the flywheel. That only appears on the 2003 CLS6 model year.

Originally Posted by Acuranoob23 View Post
I'm feel like I'm almost better off looking for a used 2003 CL-S 6 speed and do direct swap.

Serious people, considering the detail this swap involves, usually are better off with finding a cheap source car.

Originally Posted by Acuranoob23 View Post
Dont got any sites to find if of those do ya? Lol. I'm from Wisconsin. Nothing good is close.
Here's one in California. Go get it.

https://erepairables.com/salvage-car...l/vid-31879001

Last edited by zeta; 04-30-2019 at 11:45 AM.
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