Unicarriers (& Nissan) P1F2A25DU:
No spark P04 & F04 Need wiring diagram

Hi Guys,
Got a Nissan in with no spark. It has a K21 EFI engine dual fuel. We replaced both cam & crank sensors and short (Y) loom as well. Cleared all codes through dash, rotated and tested relays in both relay boxes, checked fuses and fuse box. Checked connection at ECM and VCM. Removed earth points on chassis and retightened.
Still has P04 & F04 codes coming up.
Dose anyone have a full wiring diagram so I can check all of the wires?
Any Ideas as I see that this has happened before but there is no real answers on the forum.
History is they drove it and parked it up for the night and next morning it would not start.
Thanks for any help and suggestions.
  • Posted 13 Jun 2025 10:12
  • Discussion started by mrforklift
  • Queensland, Australia
forkliftrepairs at dodo dot com dot au

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