Isuzu 2000 Trooper Workshop Manual page 722

Condition
Hesitation at high speeds
Possible cause
Powertrain Control Module defective
Throttle Position Sensor
broken or poor connections
Throttle Position Sensor defective
Engine Coolant Temperature Sensor
circuit open or shorted
Engine Coolant Temperature Sensor
defective
Mass Airflow Sensor circuit open or
poor connections
Mass Airflow Sensor defective
MAP Sensor cable broken or poor
connections
MAP Sensor defective
IAT Sensor circuit open or poor
connections
IAT Sensor defective
Ion sensing module circuit open or
poor connections
Ion sensing module defective
Throttle valve not fully opened
Air Cleaner Filter clogged
Power supply voltage too low
ENGINE MECHANICAL
Correction
Replace
cable Correct or replace
Replace
Correct or replace
Replace
Correct or replace
Replace
Correct or replace
Replace
Correct or replace
Replace
Correct or replace
Replace
Check and correct or replace
Replace filter element
Check and correct or replace
6A–9