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Home >> Jeep >> 1991 >> Cherokee Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - Fuel Injected >> Engine Sensors & Switches >> Manifold Air Temperature Sensor
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Manifold Air Temperature Sensor

  1. Disconnect coolant temperature sensor. Using a DVOM, check the sensor resistance. Resistance should be as specified in the COOLANT TEMP SENSOR & MANIFOLD AIR TEMP SENSOR RESISTANCE  table. Replace sensor if necessary.
  2. Check resistance between engine controller wiring harness terminal No. 21 and sensor connector terminal. Also check resistance between engine controller wiring harness terminal No. 4 and sensor connector terminal. Repair wiring if resistance is greater than 1 ohm.
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