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Crank no start K20z3 RSX

Posted: Tue Apr 23, 2024 2:49 pm
by jenko301
-what vehicle you have: 05 RSX type S
- serial number of your K-Pro: 2068-701644
- version of software being used (from Help, About) 4.5.9.0
- ECU part number : 37820-PRB-A07

Trying to figure out why the car will crank but not start, I've disabled immobilizer and a few other things. Car starts no issue on the stock ecu, as soon as I plug in the kpro it wont fire up only crank. I tried a map I had on a k20z3 eg swap that ran fine and that didnt work so I tried to load up a new k20z1 map and same thing. On the z3 map I get 2 error codes of P1259 and p0010, but on stock ecu only codes are for the o2 sensors. I believe when I tried the z1 basemap it had a tdc code as well as the p1259 and 0010.

Re: Crank no start K20z3 RSX

Posted: Tue Apr 23, 2024 3:15 pm
by Spunkster
What is the serial number that is on the K-Pro board inside the ECU?

Re: Crank no start K20z3 RSX

Posted: Tue Apr 23, 2024 3:17 pm
by jenko301
46152 Kpro V4

Re: Crank no start K20z3 RSX

Posted: Tue Apr 23, 2024 3:48 pm
by Spunkster
This K-Pro was prepared for an 02-04 RSX and was not modified for use in an 05-06 and I'm guessing you do not have an adapter harness either.

Re: Crank no start K20z3 RSX

Posted: Tue Apr 23, 2024 3:57 pm
by jenko301
No I don't have a jumper harness, Figured since the eg was working with the k20z3 so would this rsx. Guess I was wrong, that would be whats preventing it from starting?

Edit: After thinking about it more I think the eg did have the jumper harness on it, sadly got sold with it also. Thank you for the help.

Re: Crank no start K20z3 RSX

Posted: Tue Apr 23, 2024 4:06 pm
by Spunkster
The ECU must be modified and used with an adapter harness in an 05-06 RSX: https://hondata.com/products/kpro/kpro- ... uage=en-gb