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Reflash Check

Posted: Mon Mar 22, 2021 8:21 pm
by Jleviste
Just wanted to see if this ecu was reflashed supposedly it is. It’s a rsx 02-04 ecu on a 05-06 k20z1 I’m planning on upgrading to v4 anyway but I thought I’d check. If the 02-04 ecu is working properly on the k20z1 when I get v4 I won’t need the adapter harness, right?

Re: Reflash Check

Posted: Tue Mar 23, 2021 9:05 am
by Spunkster
There is no record of that ECU being reflashed.

An 02-04 ECU does nto work with the 05-06 harness. IF that ECU is running your vehicle then someone has changed the harness and you may have other wiring related issues.

Re: Reflash Check

Posted: Thu Mar 25, 2021 3:23 am
by Jleviste
Spunkster wrote: Tue Mar 23, 2021 9:05 am There is no record of that ECU being reflashed.

An 02-04 ECU does nto work with the 05-06 harness. IF that ECU is running your vehicle then someone has changed the harness and you may have other wiring related issues.
Say if I buy a new tucked wiring harness online for a k20a2, it should work with my k20z1 and it should work with the v4 correct? I’m picking up a v4 today and if it doesn’t work with current harness I’ll get a brand new one.

Re: Reflash Check

Posted: Thu Mar 25, 2021 10:40 am
by Spunkster
I would recommend using a factory engine harness. Most problems come from aftermarket harnesses, and you already have some wiring issues.