Question Asked: I get 2 trouble codes P2127 and P2138. Replaced throttle body/pos.sensor
March 06, 2013, 01:51 PM
I get P2138 (throttle positioning sensor) and P2127 (low voltage E) I have replaced the throttle body/positioning sensor .Car will go for about 3 days and get both check engine lights and power loss. Sometimes when I fill the tank they both go out. If I open and shut the gas cap the loss of power light will go off. I don't know what voltage output the two O2 sensors are supposed to do but #1 modulates quite a bit and #2 modulates but not as big a swing as #1. Driving me nuts.