What is HRT code mean?
HRT = Oxygen Sensor Heater Monitor (this also always goes green quickly for me)
How often do you run the EVAP monitor on a Pontiac Grand Prix?
Performing the drive cycle on your Pontiac Grand Prix at least twice will ensure all monitors run, including the EVAP monitor, and your vehicle is ready for the smog check.
What kind of emissions monitor does a Pontiac Grand Prix use?
The Pontiac Grand Prix drive cycle below will “complete” or make “ready” your vehicle’s emission monitors, including the Catalyst monitor, Oxygen Sensor monitor, EGR monitor, and Secondary Air Injection. Pontiac uses the GM (General Motors) drive cycle.
When to run the EGR monitor on a Pontiac Grand Prix?
GM/Chevy/Pontiac run their EGR monitor during the deceleration portion of the drive cycle. Evaporative Monitor (EVAP): Prerequisite: No trouble codes present, Fuel tank between 1/4 and 3/4 full. 1. Drive 5 min at steady speed between 30 and 60 mph 2. Stop vehicle and idle engine for 4 minutes.
When to run EVAP monitor on Chevy Silverado?
The ECU will run the EVAP Monitor once the engine has been shut down and ignition turned off. Prerequisite: No trouble codes present, Intake Air Temperature (IAT) above 32 Degrees (F); Engine Control Temperature (ECT) is above 167 Degrees (F)
Performing the drive cycle on your Pontiac Grand Prix at least twice will ensure all monitors run, including the EVAP monitor, and your vehicle is ready for the smog check.
The Pontiac Grand Prix drive cycle below will “complete” or make “ready” your vehicle’s emission monitors, including the Catalyst monitor, Oxygen Sensor monitor, EGR monitor, and Secondary Air Injection. Pontiac uses the GM (General Motors) drive cycle.
GM/Chevy/Pontiac run their EGR monitor during the deceleration portion of the drive cycle. Evaporative Monitor (EVAP): Prerequisite: No trouble codes present, Fuel tank between 1/4 and 3/4 full. 1. Drive 5 min at steady speed between 30 and 60 mph 2. Stop vehicle and idle engine for 4 minutes.
The ECU will run the EVAP Monitor once the engine has been shut down and ignition turned off. Prerequisite: No trouble codes present, Intake Air Temperature (IAT) above 32 Degrees (F); Engine Control Temperature (ECT) is above 167 Degrees (F)