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Ecu or Kpro damaged

Posted: Wed Jan 13, 2021 9:48 pm
by Ras1
i haave a kpro v3 in a prb ecu when i turn the ignition on the fan automatically comes on and it will not read the o2 sensor. Borrowed a friends kpro v1 and everything works as it should. o2 reads and fan comes on only when it reaches the set temp. So is the Ecu damaged or is it the kpro?

2000 civic dx
kpro 11846
37820-prb-a03

Re: Ecu or Kpro damaged

Posted: Thu Jan 14, 2021 10:14 am
by Spunkster
Have you uploaded the same calibration to both ECU's?

Re: Ecu or Kpro damaged

Posted: Thu Jan 14, 2021 1:45 pm
by Ras1
Yes sir ... same exact calibration

Re: Ecu or Kpro damaged

Posted: Thu Jan 14, 2021 2:47 pm
by Spunkster
Are you swapping the K-Pro into your ECU when testing this?

Re: Ecu or Kpro damaged

Posted: Thu Jan 14, 2021 2:50 pm
by Ras1
No 2 completely different ecu

Re: Ecu or Kpro damaged

Posted: Thu Jan 14, 2021 3:58 pm
by Spunkster
You need to try swapping the K-Pros to see where the issue is.

Re: Ecu or Kpro damaged

Posted: Fri Jan 15, 2021 4:22 pm
by Ras1
Swapped it ... same thing happens with my ecu , fan still comes on so I’m guessing there is a problem with the ecu and not the kpro.
Can it be fixed ?

Re: Ecu or Kpro damaged

Posted: Fri Jan 15, 2021 4:43 pm
by Spunkster
If the ECU is damaged it will have to be replaced. You may have a dealer that can do K-Pro installs near you than can take care of this for you: https://www.hondata.com/us-dealers