![]() ![]() The tech connected the OBDII scanner and we got an all clear. OK - this is when I drove to the smog station for re-check. Accelerate the vehicle to 55 MPH (88 km/h) and maintain the speed for at least 3 minutes. Accelerate the vehicle to 35 MPH (55 km/h) and maintain the speed for 20 seconds. For example, there will be no Secondary Air Injection monitor on a vehicle that is not equipped. If the system isnt working/functioning properly it does not pass the monitor. The The OBD2 system said the O2 sensor wasnt ready. The diagnostic software shows the O2 sensor voltage and determines if enough air was blown into the system. Im trying to get through emissions but I have 3 unset readiness monitors (secondary air, catalyst, and O2) but my check engine light has been off for almost 3 months now after I turned off the light after replacing my Cam position sensor. This is tough to do with stoplights and traffic, so I only drove like this for about 5 minutes.Ĥ. This includes warming the car up to a certain temperature, then activates the sap pump to blow air into the exhaust manifolds. I have a 2004 VW Golf with the 2.0 BEV engine with 200k miles. I'm trying to get through emissions but I have 3 unset readiness monitors (secondary air, catalyst, and O2) but my check engine light has been off for almost 3 months now after I turned off the light after replacing my Cam position sensor. This means that the ECM didnt receive a signal from the oxygen sensor, which monitors the oxygen content in the exhaust system. This means the air injection part of the drive cycle is tested when the engine is first started. Quickly depress the accelerator pedal for a moment, and then drive the vehicle at a speed of 53 to 60 MPH (86 to 96 km/h) for at least 9 minutes. I have a 2004 VW Golf with the 2.0 BEV engine with 200k miles. Didn't do this exactly - had to pull the car out of the driveway first and onto a main street to complete this step.ģ. Accelerate the vehicle to 55 MPH (88 km/h), then quickly release the accelerator pedal completely and keep it released for at least 10 seconds. ![]() Allow the engine to idle until the engine coolant temperature gauge needle points between the C and H (normal operating temperature). I started it and let it idle until it was at full operating temp (Coolant 172F) and did the following:ġ. To begin the drive cycle, the car sat overnight in the garage. i figured its more of an exhaust system question than an engine question or anything else but i could be mistaken. We look forward to your visit and establishing trustworthy and long-term standing relationship. Dealer had never seen that happen before, they said. secondary air system monitoring Manufacturers, Factory, Suppliers From China, We are sincere and open. They did, and found the car set it back to not ready after a few seconds. sensor heater system, secondary air injec-. The secondary air system monitor is supposedly the only monitor that the dealer can set to ready manually. Nine times out of every ten though, this monitor can be reset by completing a very specific drive cycle that is designed to allow the EVAP (Evaporative Emissions System) monitor, Oxygen Sensor monitor, and EGR (Exhaust Gas Recirculation) monitor to run and complete first, before the Secondary Air Injection monitor can run and complete. ***So it probably doesn't help that it's been really hot this past two weeks either.I ran a single drive cycle on the car, then took it in and it passed no problem. of these systems is to monitor and evaluate the vehicles emissions. The Lambda sensor thus registers excess oxygen. The American on-board diagnosis version OBD II monitors the action of the secondary-air system: As a check, the secondary-air pump is switched on once per driving cycle with the engine warm. The ECM monitors the secondary air injection system pressure by tracking voltage signal from the pressure sensor, which is integral to the solenoid (shutoff. Since the air injection monitor takes into effect ambient air temperate, it is best to perform a cold start in the mornings" The electrical connection is monitored for short to earth, short to power supply and open circuit. 01 Silverado 5.3L secondary air system monitor wont clear/ready, cant pass smog test. A cold start is considered starting the engine after the vehicle has sat for at least 8 hours. With that said, it's not the number of miles driven which resets the air injection monitor, rather the number of cold starts required to get all the other parameters required for the air injection monitor to to run, being met. Once the engine warms up, the monitor is done checking the air injection pump and will continue on checking the performance of the entire AIR injection system. ![]() Quote from 2nd link: "We should begin by noting that the secondary air injection monitor which checks for the performance of the air injection system and air injection pump requires the monitor to start from a cold (engine) start. ![]()
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