K20A type R/2005 rsx

K-Series Programmable ECU installation questions / support issues
Russbus
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Joined: Wed Dec 30, 2020 11:38 pm

K20A type R/2005 rsx

Post by Russbus »

So my car is a 2005 rsx I just swapped a k20A type r into my car, I have hondata Kpro 4 with the PRB ecu and adapter harness for the 05-06, also using the 2005 rsx engine harness.
Whenever I start up the car the RPM's are reading on the MPH side of the cluster and the RPM side is reading the MPH so it is reversed, I was wondering what can I do to fix that?
Also the temp gauge is not working.
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Spunkster
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Re: K20A type R/2005 rsx

Post by Spunkster »

What is the serial number that is on the K-Pro board inside the ECU?

What is the serial number that is on the white ECU plug inside the ECU as well?
Russbus
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Re: K20A type R/2005 rsx

Post by Russbus »

Kpro board number is 55856
The white plug is 37820-prb-305 2054-100395 OL12
Russbus
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Re: K20A type R/2005 rsx

Post by Russbus »

16094893463478884212461584699580.jpg
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Spunkster
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Re: K20A type R/2005 rsx

Post by Spunkster »

Check to see if the wires in the stock harness for the VSS out from the ECU and the Tach signal have been swapped.
Russbus
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Joined: Wed Dec 30, 2020 11:38 pm

Re: K20A type R/2005 rsx

Post by Russbus »

That's exactly what it was I swapped the vss and rpm wires on the back of the cluster, now it works like a dream thank you so much for the help you are awsome. 🤘👍😎
BrianJewell1988
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Re: K20A type R/2005 rsx

Post by BrianJewell1988 »

I literally just did this exact swap. Willing to bet you swapped the VSS and Tach wiring as it isn't THAT hard to do lol
1990 R32 GTR:Nitto 3.2L,7675 G2 SM,PPG,Hypertune,ARC,Nismo&other bankrupt-esque brands 1081AWHP@44psi on E98
2005 RSX Type S:DC5R K20A,Ported RBC/70mmTB,Injen CAI,GearX 1-4,Quaife 2 way,5.06 Gears,TL-S Brembo's, Wilwood Rear BBK,Fortune Auto 510's,etc
BrianJewell1988
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Re: K20A type R/2005 rsx

Post by BrianJewell1988 »

Sorry I missed Spunksters reply.
1990 R32 GTR:Nitto 3.2L,7675 G2 SM,PPG,Hypertune,ARC,Nismo&other bankrupt-esque brands 1081AWHP@44psi on E98
2005 RSX Type S:DC5R K20A,Ported RBC/70mmTB,Injen CAI,GearX 1-4,Quaife 2 way,5.06 Gears,TL-S Brembo's, Wilwood Rear BBK,Fortune Auto 510's,etc
Russbus
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Joined: Wed Dec 30, 2020 11:38 pm

Re: K20A type R/2005 rsx

Post by Russbus »

Now trying to figure out my idle, I have a brand new iacv and everything is working fine just the idle is sitting around 964 rpm when engine is warm, how do i get it to idle around 750 to 800 i tried the idle relearn process but still no luck any ideas?
Russbus
Posts: 15
Joined: Wed Dec 30, 2020 11:38 pm

Re: K20A type R/2005 rsx

Post by Russbus »

I tried to mess around with the duty valve cycle too but sounds like it runs rough if you move it all the way to the left, right now I have it about 3 click Mark's from the middle to the left.
Russbus
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Re: K20A type R/2005 rsx

Post by Russbus »

No vaccume leaks either
Russbus
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Re: K20A type R/2005 rsx

Post by Russbus »

The idle speed jumped up alittle
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Spunkster
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Re: K20A type R/2005 rsx

Post by Spunkster »

With the idle controller unplugged, what does it idle at?
Russbus
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Re: K20A type R/2005 rsx

Post by Russbus »

I will double check when I get home but I believe around 1,500 rpm
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Spunkster
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Re: K20A type R/2005 rsx

Post by Spunkster »

If that is the case, then the throttle body need to be adjusted so that it idles lower.
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