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· Registered
15 Posts
Discussion Starter · #1 ·
From time to time I get 3 codes come up all at once:

  • O2 sensors (2 codes for this)
  • Then either Generator F or Coolant temperature sensor (never seems to be both just one or the other)

I assume it must be a bad common ground somewhere?

Any help would be appreciated.

· Been there Done it
16,775 Posts
Most likely 2 separate problems. P0128 is ECT sensor, wiring, or thermostat stuck open.
P0135 and 155 are O2 sensor heater issues. Fuse in underhood fuse box, wiring or bad sensors.
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