P1000 Code Repair
Cooling System Thermostat Step 2 - The powertrain computer relies on feedback information via the oxygen, mass air flow, throttle position, crankshaft position, coolant sensors etc. to operate, if one of these sensors becomes severely shorted it can cause the computer to stay in open loop, causing the code gathering to be incomplete. Learn more
Fuel Injector Step 4 - Once the faulty sensor or injector has been found, clear the codes to recheck the system. Learn more
Code Reader Helpful Information A P1000 code is designed to inform the driver the engine management system is not working to it's full potential. When in open loop, the powertrain management system is operating on a set of values predetermined by the factory. When the computer senses the engine has warmed up to normal temperature the system will go into closed loop which allows full engine management adjustments for optimum economy and performance.