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Home >> Volvo >> 1984 >> 242 GLT, Standard >> Repair and Diagnosis >> Engine Performance >> System >> BOSCH LH-JETRONIC - Engine Control System >> Diagnosis & Testing >> Air Control Valve Check
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Air Control Valve Check

  1. Connect ohmmeter between fuel pump relay terminal "87" and ECU connecter terminal "10". Then connect ohmmeter between same fuel pump relay terminal and ECU connecter terminal "23". Resistance should be about 20 ohms for both connections.
  2. If not, replace fuel pump relay and repeat test. If resistance is still not correct, repair short or open circuit.
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