Codes P0420 and P2135
Check engine light has been on the past six weeks, i clear it and keep getting the same two codes P0420 Catalyst System Efficiency Below Threshold (Bank 1) and P2135 Throttle/Pedal Position Sensor/Switch "A" / "B" Voltage Correlation.
Is the 2135 the TPS? And what about the 420? I have no clue on that one.
2006 Suzuki Forenza 2.0LI4 60,400 miles (stock)
1996 GMC 2500 6.5L Turbo Diesel (too many mods to list)