"engine fail safe mode" dies today, starts right up

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#46

06-16-2019, 08:24 PM

Brendan Hebert

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Quote:

Originally Posted by redfishtd

P2106 Throttle Actuator Control System - Forced Limited Power

Read more at: https://www.obd-codes.com/p2106
Copyright OBD-Codes.com
The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP).
The evaporative control (EVAP) system collects raw fuel escaping from the fuel tank. ... The P0443 code is set when the ECM detects a malfunction within the purge control valve or a short in the purge valve circuit. ... Confirm the purge control valve and vent valve are properly
.Code P0155 occurs when the powertrain control module tests the upstream heated oxygen sensor's heater circuit on Bank 2 and detects a short in the circuit or excessive resistance in the heater circuit.
.Code P0135 occurs when the powertrain control module tests the upstream heated oxygen sensor’s heater circuit on Bank 1 and detects a short in the circuit or excessive resistance in the heater circuit. .The Mass Airflow Sensor (MAF) measures the amount of air entering the engine and the Engine Control Module (ECM) uses the information to determine the proper amount of fuel quantity and ignition timing. Code P0102 sets when the ECM detects a low voltage ...
The Mass Airflow Sensor (MAF) measures the amount of air entering the engine and the Engine Control Module (ECM) uses the information to determine the proper amount of fuel quantity and ignition timing. Code P0102 sets when the ECM detects a low voltage .
..- Code P0020 is triggered when the Engine Control Module (ECM) detects that the mechanical variable valve timing (VVT) between the crankshaft and the bank 2 camshaft is experiencing a variation outside of its proper parameters.

Seems to me your wiring harness is in trouble in engine compartment . Possible rodent damage or burn't wires. You have more than one system out of whack.
..

Thanks a bunch I will change the wire harness and see if I’m lucky. Thanks for taking the time to answer me

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#47

06-17-2019, 03:30 AM

redfishtd

Fleet Mechanic

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I would inspect wiring harness on top of engine

Rodents squirrels love to chew on wires and nest under intake their babies will chew on everything . Its important to find area of problem than just throw parts at it, ask me how I know that over the years . Guilty

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