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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (Engine Control System & Fuel System - 4.6L - DTC P0016 To P0341) >> DTC P0107 or P0108 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: You must perform the Circuit/System Testing before proceeding with the Component Testing.
  1. Ignition ON, remove the MAP sensor.
  2. Install a 3A fused jumper wire between the 5-volt reference circuit terminal C and a corresponding terminal of the MAP sensor.
  3. Install a jumper wire between the low reference terminal A and ground at the MAP sensor.
  4. Install a jumper wire at the signal terminal B of the MAP sensor.
  5. Connect a DMM between the jumper wire from terminal B of the MAP sensor and ground.
  6. Install a J 35555  to the MAP sensor vacuum port. See Special Tools . Slowly apply vacuum to the sensor while monitoring the voltage on the DMM. The voltage should vary between 0-5.2 volts without any spikes or dropouts.
    • If the voltage is not within the specified range or is erratic, replace the MAP sensor.
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