I'm getting 3 diagnostic codes on my car after replacing my Ignition control module and Coil pack. THese fixed most of my problems but left me with 3 codes after resetting the system.
#12 Diagnostic
#21 TPS voltage low
#22 TPS voltage high
I tried replacing the TPS sensor but this doesnt resolve the issue. I only have the Diagnostic key for flashing my Check engine light to display the codes and a multimeter. Could this be a problem in the wiring from the TPS sensor to the ECM?