A code P0120 through P0124 could set indicating communication issues with the TPS sensor. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. P0128 the main thing to check is to verify the operation of the VCT solenoid. Reason For P0128 Code The reason of P0128 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction. 
The issue may also be with the wiring to one of the 100-plus sensors. Like other PCM connections, this can be caused by fraying or corrosion. Another possible cause is a faulty ground circuit. The same thing can happen if the connectors on those wires are corroded.
This can cause short-circuits or bad connections, leading to a P0606 fault code. 
Therefore, if it was the correct repair, the check engine light will turn off on its own while driving the vehicle through its drive cycle and signals to the driver that the vehicle is ready to be tested.
Diagnostic Trouble Codes (DTC's) so that the check engine light remains on after the repair(s). The code disappeared, the car is now running better, and my car is reporting an average of 7 mpg higher. I pulled out the sensor, used the cleaner, waited for it to dry, then reinstalled the sensor. I was getting a p0171 code on my Acura (fuel system too lean) and my car was getting terrible mileage. The air flow coming into the engine is accumulated and used to determine if the engine. This input is used by the powertrain control module (PCM) for engine control and as an enabling criteria for some diagnostics. An engine coolant temperature (ECT) sensor monitors the temperature of the coolant. P0128 Coolant Temp Below Themostat Threshold. This light isn't found in all vehicles out there, nor is it always a light in the vehicles that do have this warning mechanism. The reduced engine power light comes on when the vehicle's computer detects a fault in any of the systems that allow the engine to run optimally, such as airflow sensors, throttle sensors and oxygen sensors.
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