PNF ecu with K20a2

[Barker]

Hi everyone

I'm from the UK currently finishing off a kswap (k20a2) in my dc2 integra.

Got everything finished all the wiring sorted etc tried firing her up but wasn't getting any fuel or spark. We tried a few things and ended up being led to believe the ecu could still be imobilised.

A friend brought his laptop round and plugged it into the ecu. Kmanager recognised an ecu was connected but wouldn't let us edit anything on the ecu. We could see in the 'misc' section of the parameters tab that it was immobilised. It also wouldn't recognise when the ignition was on. All the drivers were okay.

I then realised I'd been sold a PNF ecu rather than the PRA ecu that I was after. Silly me took the sellers word for it that it was an ep3 ecu.

A few questions
How come I can't fully access the ecu through k manager?
Can I still use the PNF ecu to run my k20a2?
If not can the kpro chip be easily transferred to a PRA ecu?

Many thanks

[Hondata]

It sounds like you did not open or upload a calibration to the ECU.
The PNF is a US EP3 ECU, which will run the K20A2 engine. The question is what o2 sensor and o2 sensor wiring did you use? If you used the UK narrowband o2 sensor & wiring then you must use the PRA ECU. If not, you could use the PNF with the loss of the reverse lock out solenoid.
The KPro can be transferred from the PNF to PRA ECU, but you'll need to find someone who has done this before as it is easy to mess up.

[Barker]

It sounds like you did not open or upload a calibration to the ECU.
The PNF is a US EP3 ECU, which will run the K20A2 engine. The question is what o2 sensor and o2 sensor wiring did you use? If you used the UK narrowband o2 sensor & wiring then you must use the PRA ECU. If not, you could use the PNF with the loss of the reverse lock out solenoid.
The KPro can be transferred from the PNF to PRA ECU, but you'll need to find someone who has done this before as it is easy to mess up.

Hey thanks for the quick reply. On kmanager there was no option to open or upload a calibration to the ecu. It recognised an ecu was connected but wouldn't let me do anything to it. I could view the status of it but any editable features such as the immobiliser box were greyed out. The ecu was second hand so I would have thought it would already have some form of calibration already on it.

I haven't currently wired in any o2 sensors as my friends have done k swaps without needing to so would have done it at a later date when it was all running if needs be.

Thanks

[Hondata]

KManager always has an option to open a calibration - we even made a large button on the toolbar so people could find it easily. I don't think you have a calibration open, therefore you can't upload.

[Barker]

KManager always has an option to open a calibration - we even made a large button on the toolbar so people could find it easily. I don't think you have a calibration open, therefore you can't upload.

I'm sure when we looked we could open calibrations in the kmanager program but not actually upload any to the ecu. Also any ideas as to why it won't recognise when they key turns to ignitions ?

Thanks

[Spunkster]

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

[Barker]

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

05004250

[Spunkster]

I would recommend that you try the ECU in a known working vehicle as there could be a wiring problem in your vehicle. It is also possible that if there is a wiring problem it has damaged the ECU, or you purchased a damaged ECU, as this is 10 years old.

[Barker]

I would recommend that you try the ECU in a known working vehicle as there could be a wiring problem in your vehicle. It is also possible that if there is a wiring problem it has damaged the ECU, or you purchased a damaged ECU, as this is 10 years old.

Okay will try them and report back

thanks

[Barker]

I would recommend that you try the ECU in a known working vehicle as there could be a wiring problem in your vehicle. It is also possible that if there is a wiring problem it has damaged the ECU, or you purchased a damaged ECU, as this is 10 years old.

Tried the ecu in my friends car and his didn't start. I still think it's because the ECU is immobilised but it won't let me access it to uncheck the box ?

[Spunkster]

How exactly are you opening a calibration?

[Barker]

Im opening just a default calibration from the new calibration tab. As you can see from the pics with the ecu plugged in it will not recognise the ignition is on, the misc section with the immobiliser enabled is not editable and the lightning bolt icon isnt clickable. Saw something about clearing ecu security so tried that but also couldnt do that. Also says in kpro information that the ecu is a PRB which has now confused me?

Does the ignition have to be on for anything to be edited on the ecu? im thinking my third part alarm/immobiliser is playing up so when the key is turned to ignition its not actually registering because the cars immobiliser is still armed.

Cheers

[Hondata]

On the screenshots a calibration is not open.

If it does not show 'ignition on' then 90% of the time, especially with an engine swap, the ECU has been damaged from incorrect wiring of the main relay or fuel pump relay. The other 10% of the time it is an USB driver issue.

If possible try the ECU in an known good vehicle.

[Barker]

On the screenshots a calibration is not open.

If it does not show 'ignition on' then 90% of the time, especially with an engine swap, the ECU has been damaged from incorrect wiring of the main relay or fuel pump relay. The other 10% of the time it is an USB driver issue.

If possible try the ECU in an known good vehicle.

On the screenshots there's no calibration open however I did open a default one but still no lighting bolt icon. Tried ecu in a friends working vehicle but not with laptop

[Jocker_666]

The other 10% of the time it is an USB driver issue.

Barker this is more than likely Your issue as from the pictures You've uploaded it shows that driver is not installed (bottom left corner). So I would start from there.