Car Starts with Stock ECU but not Kpro ECU

K-Series Programmable ECU installation questions / support issues
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leick10
Posts: 3
Joined: Sat Oct 30, 2021 10:49 am

Car Starts with Stock ECU but not Kpro ECU

Post by leick10 »

Vehicle: K20a2 swap
K-pro serial number:
Software version: 4.5.1.0
Kmanager version: 4.5.1.0 Build 2419
ECU part number: 37820-PPA-A06
ECU serial number: 2488-600791
Calibration:
Etunez.RyanLeick.K24K20H.PRBPPBA.STK.MM.SD.DD.Rev0.kal
[/b]
Datalog: no datalog available from Kpro unit
Modifications from stock: Using 2006 CR-V manual harness to 2004 CR-V manual ECU (PPA-A06) with Hondata 05-06 RSX adapter
Purchased from: Revline Motors, December 2021 (new installation this week)
Specific description of the problem:

Car starts fine with stock ECU. When PPA K-pro ECU is plugged in, fuel pump does not prime and car turns over but does not start despite having the 'Enable Immobilizer' box unchecked in the attached KAL. Ignition indicator in Kmanager shows 'off' when key is turned on (
Kmanager screenshot.png
). Also notice ODBII sensor won't connect with Kpro ECU while it works with stock ECU. Worried ECU or Kpro unit is damaged. Burnt electrical smell coming from ECU on first attempt to startup when PGM-FI main relays were not installed. I don't have access to another vehicle to test the ECU in.
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Spunkster
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Posts: 23884
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: Car Starts with Stock ECU but not Kpro ECU

Post by Spunkster »

What is the stock ECU part number?

Can you open the ECU and see if anything is burned?

An 06 CRV harness is not compatible.
leick10
Posts: 3
Joined: Sat Oct 30, 2021 10:49 am

Re: Car Starts with Stock ECU but not Kpro ECU

Post by leick10 »

Yeah, it is fried. You can see scorching around and bubbling / cracks through D268 on the far top right corner of the circuit board.
20220325_131721.jpg
20220325_132419_HDR.jpg


I should have got the 02-04 RSX program instead of the 05-06 RSX anyway since I'm using a low frequency transmission and VSS wired directly to the gauge cluster. I have a spare PND-A14 already. Can I send it in with my existing unit and have the K-Pro 4 board installed on the PND ECU for the 02-04 RSX?
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Spunkster
Site Admin
Posts: 23884
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: Car Starts with Stock ECU but not Kpro ECU

Post by Spunkster »

A pnd-A14 cannot be used as it is not compatible.

It sounds like some part have been used that are not compatible and that has damaged the ECU. The K-Pro may also be damaged.

Send an email to support <at> hondata.com with the following and I will issue an RMA and give you further
instructions:

Name:
Address:
Phone:
Email:
Serial#:
Description of problem:

Include a link to this thread.
hondagourou
Posts: 1
Joined: Sat Apr 23, 2022 6:41 pm

Re: Car Starts with Stock ECU but not Kpro ECU

Post by hondagourou »

My current 2003 CRV manual work great with PRB ecu and the k24A2.

Dyno tuned all function work!

You need to convert your harness/car to 02-04 specs.

I recently purchased 2005 crv and i'm gonna convert it to cable throttle and older cruise control.

VSS is already wired the old way to the cluster.
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