My 2005 ion keeps going to reduced power mode p2138. Than I clear it its fine but keeps coming on at all different times unpredictable. Also has codes p2135- p2138 what could be the problem ?
Replace the A/C Refrigerant Pressure Sensor or the Fuel Tank Pressure (FTP) Sensor.
How would the ac pressure sensor help my throttle position pedal sensor code readingp2135??
my 06 ion coupe was throwing P0120, P0123 and P2135 when it rained/snowed. The ECM has 2 large connectors on it. When facing the car the connector on the left had 3 chafed wires right where the wires meet the connector. You will need to remove the connector to see them. I used vulcanizing rubber tape to re- seal and pad them against the connector.
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