Easy step by step guide on how to repair an automotive code gathering incomplete P1000 trouble code, this
information pertains to most OBDII systems.
Difficulty Scale: 4 of 10
Begin with the vehicle on flat ground, in park with the emergency brake on, engine
Step 1 - If the engine thermostat has stuck open,
the engine operating temperature stays too low, causing the computer to stay in
open loop. The computer is now constantly waiting for the engine to heat up for
closed loop computing.