How do you do a drive cycle on a 2001 Pontiac Grand Am?

Answer 1

Catalyst monitor:
Pre-req: no codes present, IAT between -4 and 176 deg f; ECT is above 75 deg f; barometric pressure above 72kPa, STFT between -20% and 20 %
-Idle vehicle 5 minutes until it is in closed loop
-drive 5 min at steady speed above 50 mph
-idle 2 min in drive (auto) or neutral (manual)
*very stable idle is required to pass this monitor
EGR Monitor:
Pre-req: no codes present, ECT is above 75 deg f; barometric pressure above 72kPa
1. Idle vehicle 5 minutes until it is in closed loop
2. Accelerate and drive for 1 min at steady speed above 50 mph
3. coast vehicle down to 20 mph (vehicle in drive or w/ clutch engaged, brake off)
4. repeat steps 2 and 3 four times
* the GM egr runs during the deceleration portion of the drive trace
Evaporative Monitor:
Pre-req: no codes present, IAT & ECT between 45 and 85 deg f: barometric pressure above 75 kPa, fuel tank level between 26 and 74 %; TPS between 9& 35 %; evap solenoid is at 50% pwm within 65 sec of engine run time
-Idle vehicle 5 minutes until it is in closed loop
-drive 5 min at steady speed between 30 and 40 mph
-stop and idle 2 min
O2 Sensor Monitor:
Pre-req: no codes present, IAT above 32 deg f; ECT is avove 167 deg f
-Idle vehicle 5 minutes until it is in closed loop
-drive 3 min at steady speed above 50 mph
-drive 2 min at steady 40 mph
-drive 2 min at steady 50 mph