Different ECU of AE86 ? ? ?
03-09-2006, 07:23 PM
Post: #1
Different ECU of AE86 ? ? ?
Hi,Sorry fir my english...

I have 3 ECU (89661-12060 * 175700-0051 12v )for AE86.
Today I have open this Ecu and in the interior is different...

The number is the mircrochips is differents...

What the difference ??pourquoi?



1)


[Image: AEU86 AE86 - Different ECU of AE86 ? ? ?]



2)

[Image: AEU86 AE86 - Different ECU of AE86 ? ? ?]


3)

[Image: AEU86 AE86 - Different ECU of AE86 ? ? ?]

[Image: AEU86 AE86 - Different ECU of AE86 ? ? ?]
[Image: AEU86 AE86 - Different ECU of AE86 ? ? ?]
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03-09-2006, 08:40 PM
Post: #2
Different ECU of AE86 ? ? ?
I heard from Robokill the Zenki and Kouki ECUs are different.

1983 - AE86 Sprinter Trueno - import project
2013 - Honda Civic sport - daily driver
2004 - AEU86 dot ORG - daily domain

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[Image: AEU86 AE86 - Different ECU of AE86 ? ? ?]
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03-10-2006, 08:32 AM
Post: #3
Different ECU of AE86 ? ? ?
Yep....nr 1 and 3 are zenki ECU's.. I have one in my drawer here so I'm pretty sure.

FABRICA MI DIEM, PVNC!
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03-10-2006, 09:13 AM
Post: #4
Different ECU of AE86 ? ? ?
As far as I known the ECU sends difrent signals in a kouki than in a zenki.
The engine can start but when it goes to the ecu to keep the moter running it dies. Simply because some sensors are difrent.

Cars:
"99 Lexus IS200
"86 AE86 Kouki Panda Levin GT-Apex (restore project)
"84 AE86 Zenki Blue Levin (project racer)
Motorcycles:
"02 Yamaha R1
"02 Honda Hornet S
"08 BMW R1200GS
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03-10-2006, 11:11 AM
Post: #5
Different ECU of AE86 ? ? ?
sorry about the off topic , but can someone point in those pictures the crystal that have to be changed to raise rev limit ?
thank you
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03-10-2006, 12:25 PM
Post: #6
Different ECU of AE86 ? ? ?
Probably the little metal casing on the bottom left (near the CPU).

FABRICA MI DIEM, PVNC!
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03-10-2006, 01:25 PM
Post: #7
Different ECU of AE86 ? ? ?
Thank you
I think I will be able to do some testings on this crystal, I will post result if i get any Smile
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03-10-2006, 05:39 PM
Post: #8
Different ECU of AE86 ? ? ?
ok,thanks

ZENKI and KOUKI is the same thing (Performance)??
I can assemble ECU KOUKI in my AE86 ZENKI???

[Image: AEU86 AE86 - Different ECU of AE86 ? ? ?]
[Image: AEU86 AE86 - Different ECU of AE86 ? ? ?]
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03-10-2006, 07:18 PM
Post: #9
Different ECU of AE86 ? ? ?
Performance is similar, they are not interchangeable..

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03-11-2006, 01:06 PM
Post: #10
Different ECU of AE86 ? ? ?
Does the main MCU chip say 151801-0481 on all three ECUs?

If so I would guess all three are the same and will be interchangeable.

The fact that the 89661-12060 number is on the lid of all three backs this up. (unless the lid has been swapped)

If you change the MCU crystal frequency you will also affect the fuelling and ignition timing slightly.

What country are these AE86 ECUs from?
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