Once you have determined which have either not run, or not passed, you can look at the criteria for running the test, and see if there are specifics that are not being met. Total time of OBD II Drive Cycle 12 minutesĭo you have the capability to see what dtc tests have run and passed, and/or run and not passed? It should be available on the scan tool. I can find the secondary pump relay, and by jumpering it have verified that the pump. it will not pump from secondary tank to primary tank. Have a 2001 Silverado 3500 cab and chassis. The air pump is not - Answered by a verified Chevy Mechanic. Misfire, Secondary Air, Fuel Trim, HO2S, EVAP PurgeĬlutch engaged (Man), no braking, decelerate to 32?Km/h (20?Mph)Īccelerate to 90 97?Km/h (55 60?Mph), 3/4 throttleĥ minutes of Steady State Cruise at 90 97?Km/h (55 60?Mph)Ĭatalyst Monitor, Misfire, Fuel Trim, HO2S, EVAP Purgeĭecelerate, no breaking. I have a 2001 chevy Silverado 1500 2wd 4.8 engine that shows a secondary air monitor incomplete. Accelerate to 90?Km/h (55?Mph), 1/2 throttle.ģ minutes of Steady State - Cruise at 90?Km/h (55?Mph) hello gm authority community i’m having issues with a smog readiness monitor not completing, any information on this issue would. The PCM will command the check engine light to illuminate and store a DTC if the fault occurs during 2 drive cycles. If an incorrect oxygen sensor signal is detected the PCM will set a pending code.
2001 SILVERADO SECONDARY AIR MONITOR MANUAL
HO2S Heater, Misfire, Secondary Air, Fuel Trim, EVAP PurgeĪ/C OFF. The two most common reasons for Readiness Status issues are electrical glitches from the battery and inconsistent drive cycle. The PCM will successfully complete the secondary AIR system monitor if the proper voltage signal is detected from the upstream oxygen sensor. Apply and hold brake pedal, and shift to Drive for automatic, or apply clutch pedal for manual and operate the vehicle within the following conditions for 2 minutes: Depress the accelerator pedal until TP Sensor angle is more than 2 percent. It looks like a short canister, with electric connection on the top and a rubber hose coming out.
2001 SILVERADO SECONDARY AIR MONITOR CODE
Idle 2.5 minutes in Drive (Auto) Neutral (Man), A/C and rear defogger ON Diagnostic Test Code (DTC) P0410 indicates that your secondary air injection system is not functioning properly. The secondary air check valve is behind the top of the engine. Here is the typical drive cycle that I have shown, see if there is anything different than what you are doing.ĭiagnostic Time Schedule for I/M ReadinessĬold Start, coolant temperature less than 50 C (122 F) The O2 sensor monitor has run, and PASSED, but the converter monitor wont run.
Nothing is wrong keep driving it I have seen where it takes up to 400 miles for the monitors to reset. For instance, Ive found marginal O2 or AF (air/fuel) sensors to be the cause.
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