Hi,I have a problem with my Seat Leon 2006 1.9 TDI (BXE).
Fault code:
P0102 – MAF signal too low.
Fault appears only when engine is running (comes back right after clearing).
MAF value is stuck at ~550 mg/str (doesn’t change with RPM).
What I’ve done:
Replaced MAF with new Bosch no change.
Checked wiring from MAF to ECU continuity OK.
5V reference present.
12V supply sometimes missing/intermittent.
Tried giving direct +12V and ground from battery still same problem.
EGR/DPF deleted long ago, no issues before.
What else could cause this? Wiring under load? Bad ground? Or ECU issue?
Thanks
Fault code:
P0102 – MAF signal too low.
Fault appears only when engine is running (comes back right after clearing).
MAF value is stuck at ~550 mg/str (doesn’t change with RPM).
What I’ve done:
Replaced MAF with new Bosch no change.
Checked wiring from MAF to ECU continuity OK.
5V reference present.
12V supply sometimes missing/intermittent.
Tried giving direct +12V and ground from battery still same problem.
EGR/DPF deleted long ago, no issues before.
What else could cause this? Wiring under load? Bad ground? Or ECU issue?
Thanks
