ECU Question

[shawno]

Ok i have done my KLZE engine swap now but i am running my stock K8 ECU.
I need a new on i was wondering the difference betwen the KL31 and the KL36.
Now are the J-spec and the A-spec ECU's different or could i go to the the junkers and get a American Ecu out of a 626 or something and it will work fine.

[Talon_66]

Do not use a remapped ECU or Eprom ECU

KL31 and KL36 will be your best bet. Get either if you have a 5spd. Both will work.

[DavidOS]

kl31 kl36
no difference really, ones for the automatic and ones for the manual both work equally well.

I tested the 31 on my car and it takes along time for my fans to kick in(probably cause i havnt swapped the coolant sensor)

the 36 stays on all the time (which will be fixed when i swap that coolant sensor) power on both is the same and the powerband of the engine is the same you dont feel a different pull at different revs.

[shawno]

so could i use a ecu out of a american 626 for the KLZE and work fine or do i need a j spec one meant for my engine

[DavidOS]

if it says kl31 or kl36 on it then yes

[relisys_3200]

if you use the american spec ecu...then you also have to use the american spec vaf

[jschrauwen]

so could i use a ecu out of a american 626 for the KLZE and work fine or do i need a j spec one meant for my engine

Short answer - YES. The KL01 ECU which I believe is the MX6/626 ECU and you will need the corresponding KL02 VAF, also from the MX6/626 I believe. Should consider acquiring a KL31 or Kl36 ECU where either one will require the use of your old VAF - JE50.

[shawno]

so if i use the american Ecu its the KL01 i need the vaf to work with it.

But if i get a KL36 ecu i can use my stock vaf of the 1.8L and not get a new one

[shawno]

and if i use the american ecu instead of the j spec on will i still get the same amount of power.

[mxmaz]

Yeah you will lose power with a klde ecu. Get a ze ecu

[relisys_3200]

so if i use the american Ecu its the KL01 i need the vaf to work with it.

Yes, f you use the american spec ecu....you will need to use the corresponding vaf to work with it

But if i get a KL36 ecu i can use my stock vaf of the 1.8L and not get a new one

Yes, if you get a KL36 or KL31 ecu, you use your stock je50 vaf thats on your 1.8

and if i use the american ecu instead of the j spec on will i still get the same amount of power.

I think alot of people have different opinions on this one...I'm sure Jschrauwen can help you out with this one, as I believe he has run both set ups.

[jschrauwen]

so if i use the american Ecu its the KL01 i need the vaf to work with it.

Yes, f you use the american spec ecu....you will need to use the corresponding vaf to work with it

But if i get a KL36 ecu i can use my stock vaf of the 1.8L and not get a new one

Yes, if you get a KL36 or KL31 ecu, you use your stock je50 vaf thats on your 1.8

and if i use the american ecu instead of the j spec on will i still get the same amount of power.

I think alot of people have different opinions on this one...I'm sure Jschrauwen can help you out with this one, as I believe he has run both set ups.

Correct on all 3.
I've used the KL01 ECU and KL02 VAF combo but the time lag between the change-over to the KL31 and JE50 VAF was a little to long to make any sort of performnce critique. Suffice it to say that there were still gobs of power there in comparison to the K8. I do think that I may have been running a little rich only because of running the Millennea IM w/ corresponding fuel rails and KL68 TB both of which may have contributed to the rich condition when integrated with the A-Spec components (KL01ECU/KL02VAF). I believe that I posted something similar in "shawno's" other thread.

Good memory Brandon!!!

[skdrcr]

so if i use the american Ecu its the KL01 i need the vaf to work with it.

Yes, f you use the american spec ecu....you will need to use the corresponding vaf to work with it

But if i get a KL36 ecu i can use my stock vaf of the 1.8L and not get a new one

Yes, if you get a KL36 or KL31 ecu, you use your stock je50 vaf thats on your 1.8

and if i use the american ecu instead of the j spec on will i still get the same amount of power.

I think alot of people have different opinions on this one...I'm sure Jschrauwen can help you out with this one, as I believe he has run both set ups.

Correct on all 3.
I've used the KL01 ECU and KL02 VAF combo but the time lag between the change-over to the KL31 and JE50 VAF was a little to long to make any sort of performnce critique. Suffice it to say that there were still gobs of power there in comparison to the K8. I do think that I may have been running a little rich only because of running the Millennea IM w/ corresponding fuel rails and KL68 TB both of which may have contributed to the rich condition when integrated with the A-Spec components (KL01ECU/KL02VAF). I believe that I posted something similar in "shawno's" other thread.

Good memory Brandon!!!

What if you have a KLZE w/the K8 automatic transmission?

Will any KLZE ecu work?

[shawno]

hey jschrauwen

I saw that you live in frankford

And i live in Belleville i was wondering if you had a ECU for sale that i could maybe buy for my KLZE motor.

Or if even you would know a place i could get one

Thanks