Fuel Trim Monitor

DRIVE CYCLE PATTERN # 5 FUEL TRIM MONITOR (P0170)




Test conditions/procedure:
1. All of the following conditions should be satisfied when the drive test is carried out.
(1) Engine coolant temperature: 80° - 97°C (176° - 207°F) (when engine is fully warmed up)
(2) Outside air temperature: -10°C (14°F) or higher, 60°C (140°F) or lower
(3) A/T condition:
- Selector lever position: D range
- Overdrive switch: ON
- Power/economy change over switch: Power
2. Carry out one trip monitoring according to the following drive pattern (from starting of the engine until ignition is turned off). (Takes approximately 35 minutes.)
*1: After the engine is fully warmed up, turn the ignition switch to OFF.
*2: Start the engine and accelerate to a speed of between 89 - 97 km/h (55 - 60 mph).
+3: Monitoring period: drive for 30 minutes or more while maintaining the vehicle speed at between 89 - 97 km/h (55 - 60 mph). Do not drive consistently for a continuous period of any more than 120 seconds during this time. (Gentle acceleration and deceleration and braking can be carried out, but sudden acceleration and deceleration should be avoided.)
*4: Decelerate to a stop. After the vehicle has stopped. turn the ignition switch to OFF.