Can the ECU be modified?

[MrMazda92]

My mistake. I missed the japanese K8 part and assumed we were talking KLZE.

It would be theoretically possible to reflash the K8 EPROM but I don't know of anyone who ever has.

I almost did too, barely caught it before I hit submit

[K_I_R_K_S]

hmmm... again. what are these issues you speak of?? Iv done it... had a KFZE in a 30x on a K8 ECU..
Had a DE in a Telstar that was a ZE... no issue...

a KF isn't that big of a jump of a motor for that ECU (only an extra 200cc), that motor does use a K8 head afterall and I'm going to take a guess that the KF uses the same 180cc injectors as the K8 which is the reason why it works, but many guys here had issues trying to get KF's to run on many ECU combo's and given up al together, so there's little documentation here on what actually works with a KF.

a KLDE ECU will run a KLZE just fine, people do it here all the time. they're both 2.5L motors, so ya, no problems there

Improper mixture, the ECU thinks the motor is 2500cc while the engine is 1800cc with 180cc injectors, and it's giving pulses for 220cc injectors, there's going to be a whole wack of confusion in the ECU, especially when it comes to reading the extra air coming into the VAF being sucked in by the extra 700cc and the bad mixture being measured by the 02's coming out of the exhaust cause the injectors are dumping in too much duel.

my bad.... yeah i know the differences.... but i back to backed a KL and a K8 ecu on a KFZE on the dyno............. not much difference....

[Nd4SpdSe]

It would be theoretically possible to reflash the K8 EPROM but I don't know of anyone who ever has.

You could do it the exact same way with a Probinator, you'd just have to home that Probinator has either the K8ZE code to flash into his chips, has the K8ZE code to flash into one of his chips, or has the knowledge to change the code for his KLZE flash to work for a K8ZE....those are the only ways I can see you getting a modified ECU/EEPROM

[Mnemonic]

when in doubt call corksport, i'm pretty sure they can either:

A. order you a jspec ecu,
B. flash the ecu to match,
C. tell you to hook the egr back up lol.


there is option D. Megasquirt

with corksport you'll pay a premium... it would probably more cost effective to go with the megasquirt lol.