P2101 Chevrolet uplander-P2101 intermittent on cold mornings

Question

I've been getting the reduced engine power indication and the engine light on cool mornings (under 5 degrees C). When it's warm it doesn't happen. A code reader extracted the codes: P2101 and P2135. P2135 is not always present. When the codes are erased, the vehicle operates normally. I have tried wiggling the wires connected to the throttle body to induce the code but could not induce any codes. I also cleaned the throttle body which had been quite dirty. It's getting cooler at night now that we are into October. Temperatures are at or near freezing at night. I realize this isn't extreme, but could it be a factor? Would the throttle body be my most likely culprit?

Answer 1

Hi there,

P2101 indicates an issue with the throttle actuator control module. Here is some info for you.

P2101 CHEVROLET - Throttle Actuator Position Performance

Read more: https://www.autocodes.com/p2101_chevrolet.html

P2135 indicates an issue with the throttle position sensor. Here is some info for you.

 P2135 CHEVROLET - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation

Read more: https://www.autocodes.com/p2135_chevrolet.html