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6A–8 ENGINE MECHANICAL (X22SE 2.2L) Hesitation Condition Possible cause Correction Hesitation on acceleration Throttle Position Sensor adjustment Replace throttle valve assembly Throttle Position Sensor circuit open Correct or replace Excessive play in accelerator Adjust or replace Manifold Absolute Pressure (MAP) Correct or replace MAP Sensor defective Replace Intake Air Temperature (IAT) Sensor Correct or replace Knock Sensor (KS) Circuit open or Correct or replace KS defective Replace KS Module circuits open or shorted Correct or replace KS Module defective Replace IAT Sensor defective Replace Hesitation at high speeds Fuel tank strainer clogged Clean or replace Fuel pipe clogged Clean or replace Fuel filter clogged Replace Defective fuel pump system Check and replace Fuel Pressure Control Valve leaking Replace Hesitation at high speeds Power supply or ground circuit for Check and correct or replace Cable of Multiport Fuel Injection Correct or replace Hesitation at high speeds Engine Control Module defective Replace Throttle Position Sensor circuit open Correct or replace Throttle Position Sensor defective Replace Engine Coolant Temperature Sensor Correct or replace Engine Coolant Temperature Sensor Replace MAP Sensor cable open or shorted Correct or replace MAP Sensor defective Replace IAT Sensor circuit open or shorted Correct or replace IAT Sensor defective Replace KS Circuit open or shorted Correct or replace KS defective Replace KS Module circuit open or shorted Correct or replace KS Module defective Replace Throttle valve not wide opened Check and correct or replace Air Cleaner Filter clogged Replace filter element Power supply voltage too low Check and correct or replace |