P0133 OBD Trouble Code

1 result found

P0133 - GM
Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description

HO2S Slow Response Conditions

Location Bank 1 Sensor 1
Cause

No AIR, ECT, EVAP, IAT, ln]ector, MAF, MAP, Misfire or TP sensor codes set, DTC P0155 and P1133 not set, AIR, Catalyst and EGR Flow test inactive, no injectors disabled, engine runtime over 202 seconds, system voltage 8-18v, engine speed 1200-2800 rpm in closed loop, throttle position over 3%, ECT sensor input over 167°F, MAF input from 15-35 g/sec, Transmission not in Park, Reverse or Neutral, all conditions met for 3 seconds, then the PCM detected that the HO2S-11 lean to rich average transition time or that the HO2S-11 rich to lean average transition response time was longer than 200 ms during the sample period, or that the HO2S signal was from 325-625 mv during the sample period.

Try also: https://www.obd-codes.com/p0133