Wife said car(and I verified) that she lost speed control, got a check engine light, and the transmission doesn't want to respond correctly (ex. slow to engage when accelerating after having slowed down for an off ramp, or speeding up to pass).
First engine scan gave the following errors:
KOEO Codes-
23 Throttle Position Sensor is out of range Memory Codes- 31 EGR valve position or exhaust pressure transducer sensor voltage low 63 Throttle Position Sensor voltage too low or grounded KOER Codes- 12 Cannot control RPM during self check or Idle Speed Control Problem 23 Throttle Position Sensor is out of rangeCleared codes, unplugged TPS and scanned a second time and got these errors:
KOEO Codes-
98 Electronic Pressure Control driver failure in control module (or hard fault) 63 Throttle Position Sensor voltage too low or grounded Memory Codes- 11 System Pass KOER Codes- 12 Cannot control RPM during self check or Idle Speed Control Problem 23 Throttle Position Sensor is out of rangeIt's having issues obviously, but it's the Memory code 11 that throws me. That seems to signify that the electronics are fine but the 98 seems to mean everything is screwed. This car has some age on it but was kept (I though well) by the previous family member. Could the TPS, EGR and Speed Control all be bad at the same time? Or am I looking at a bad ECU supplying bad voltage to the sensors? I thought I was looking at replacing an ECU at first. All the parts put together aren't too much to replace, but I'd prefer a simple fix. Yes, it passed a wiggle test.