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Hi
Dtc P0405 is related to the EGR Postion sensor not the TPS. Just wanted you to be aware If your checking the Throttle Position Sensor based on the P0405 the code is related to a different component on the vehicle? As far as poor acceleration are you sure you not having an issue with the egr? Let me know if you need more help. Happy to walk you through testing the EGR system on the vehicle. Also keep in mind you dealing with the DTC p0405 which relates to a low voltage problem on that circuit. The PCM monitors the EGR valve position sensor. The 5V, low reference, and signal wires going to the sensor are calculated by the PCM to determine EGR pintle position. If the EGR sensor signal is pulled below a certain voltage level the DTC P0405 will set and illuminate the MIL on your vehicle. On a different note the oil in in the TPS connector needs to be addressed too. Let me know if you need help.
Hi
Couple of quick questions for you? First off you said the security light is on? Does the security light prove out when you turn the key to the run position or does it stay illuminated all the time or flash? Second question as far as having no codes in for related security issues is this just checking the codes in the PCM powertrain control module or do you have the availability to check others controllers on the vehicle ie BCM, and RCDLR control modules?