Night Terror

31 - EGR Valve Position/Pressure Feedback EGR Circuit Below Minimum Voltage. 0.24 volts (O,M,R)
I have my EGR disconnected and a block plate where it used to be lol...

18 - Spark Out (SPOUT) Circuit Open (R), Loss Of Ignition Diagnostic Module Input To PCM/SPOUT Circuit Grounded (M)

Im not 100% sure this is the correct code... but it blinked once, and it seemed like a longer then usual wait then it flashed 8 times...

41 - System Indicates Lean -passenger side(R), No o2 Sensor Switching Detected. always lean -passenger side(M)

yikes

91 - o2 Sensor Circuit Indicates Lean -driver side(R), No o2 Sensor Switching Detected. always lean -driver side(M), Shift Solenoid 1 Circuit Failure (O)




So where do you fellas think i should start?

Ketis

well i would check the wires going to the o2 sensors, and if they are fine i would suggest replacing them.

also look for any loose grounds and if not, try taking the grounds off and cleaning them up

FivePointOhh

code 18, make sure your spout is connected and not loose.

code 91/41 make sure you o2's are all the way in the bung and there is no exhaust leaks prior to reaching the o2's. if they are and you cant locate a leak, possible replacement of these o2's will fix your issue





side note of the o2's i took off the harness and cleaned the corrosion off the connectors and my 41/91 codes went away.