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Home >> Land Rover >> 1992 >> Range Rover Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Self-Diagnostic System >> Preliminary Checks
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Preliminary Checks

CAUTION: If engine is misfiring or fails to start within 12 seconds the cause must be rectified. Failure to do so will result in irreparable damage to the catalysts. After rectification the engine must be run at 1500 RPM (no load) for 3 minutes to purge any accumulation of fuel in the system.
  1. Check that the inertia fuel shutoff switch is not tripped.
  2. Check fuse C4 in main fuse panel and the fuel pump fuse 10-amp, located under the drivers seat.
  3. Check for ample fuel in tank.
  4. Check air inlet system for possible leaks into the intake manifold.
  5. Check spark plug wires for correct firing order and routing.
  6. Check ignition timing.

Only after the above checks have been carried out, should circuit diagnosis begin. The diagnosis procedure using the Lucas Hand Held Tester (RTC6834) is contained in the hand held tester manual.