Intermittent red light when start

[jdouille]

Hello everyone.

Honda civic type R ep3 eudm pra ecu 2002.

Hondata kpro v4, bolts with perfect Map on dyno. 242ch and 231nm

When i started my car i have a green light but when turn the Key for ckanking engine my Ecu light red for little moment and return green.

It's normal ? Because the car it's verry slow and loss power on the road.

It's an intermittent problèmes !!! No change parts on car and the Map it's perfect.

[Spunkster]

Are you able to datalog? Are there any errors?

[jdouille]

My tuner doesn't explication, no cell, ,no error.

On Datalog there are not visible problems. I have a battery Odyssey PC680 and the exterior temperature around 5C°
But starting is not dificulte.

Battery it's possible cause ? two years old and complet charge with CTEK it's ok.... or Kpro card failed ?

[Spunkster]

It sounds like you may be getting a daughterboard communication error from low voltage when cranking.

[jdouille]

When the first step "contact Key" engine off.
The light is red then green on Kpro. It's normaly ?

It's not green all Time before start engine.

[Spunkster]

You should use a multimeter at the ECU to check the voltage when cranking.

[jdouille]

Ok.

What this Pin for read a multimeter ?

[Spunkster]

A2+ and A4-