Nanocom fault codes

Having got my Nanocom working I have now found some fault codes,

EDC - fuel flow valve out of range.

HEVAC - (32) compressor clutch control circuit open (fault type current)

Also have another on info screen - catalyst overheat, but can't find a
fault code for it!

Any ideas what I should be looking for and what to check/change.

Taylorcraft said:

Having got my Nanocom working I have now found some fault codes,

EDC - fuel flow valve out of range.

HEVAC - (32) compressor clutch control circuit open (fault type current)

Also have another on info screen - catalyst overheat, but can't find a
fault code for it!

Any ideas what I should be looking for and what to check/change.

Click to expand...

Assuming you are talking about a diesel, fuel flow out of range may either be a fault with the FIP or a transient fault that occurs when starting the engine. If you clear it, does it come back when running? If it only comes back when cranking to start, I think you can ignore it as long as the engine is running well.
HEVAC fault will depend on year. On early cars the aircon compressor clutch was operated direct from the HEVAC, later cars it was via a relay. It's a matter of checking the circuits out.
I'm not aware that there is any sensor on the catalytic convertor.
The above assumes it's diesel based on your use of the term EDC, Electronic Diesel Control.

Taylorcraft said:

Having got my Nanocom working I have now found some fault codes,

EDC - fuel flow valve out of range.

HEVAC - (32) compressor clutch control circuit open (fault type current)

Also have another on info screen - catalyst overheat, but can't find a
fault code for it!

Any ideas what I should be looking for and what to check/change.

Click to expand...

Don't know what it means by fuel flow valve out of range. The only fuel flow device i know of is the control collar attached to the fuel quantity solenoid. So can't help with that one. Compressor clutch open circuit will be low gas pressure in system. Compressor will not run if there is no gas pressure. Either you have no gas pressure in Aircon or the pressure switch that closes the circuit when you have has failed. Cat have not got a clue about, there is no sensor on the diesel cat. There should not be any reference to cat in EDC menus. If you have a diesel you must use EDC and all the menus withing that.

wammers said:

Don't know what it means by fuel flow valve out of range. The only fuel flow device i know of is the control collar attached to the fuel quantity solenoid. So can't help with that one. Compressor clutch open circuit will be low gas pressure in system. Compressor will not run if there is no gas pressure. Either you have no gas pressure in Aircon or the pressure switch that closes the circuit when you have has failed. Cat have not got a clue about, there is no sensor on the diesel cat. There should not be any reference to cat in EDC menus. If you have a diesel you must use EDC and all the menus withing that.

Click to expand...

I thought he meant fuel flow value

Datatek said:

I thought he meant fuel flow value

Click to expand...

Maybe Keith which would be something to do with quantity servo. But he needs to check his modulation is correct, in other words pump is static timed correctly.
Should read 45 to 55% modulation with engine warm any higher than that and solenoid will have to be held in an unnatural position to give idle speed. Maybe that is the fault. I have this fault on mine and i know modulation is out, up at around 74% so pump needs setting. Summer job though.