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Engine Cranks But Does Not Start

  1. Using a modified spark plug (side electrode removed and case grounded), check for spark at No. 2 spark plug. If spark occurs, ESC is OK. Check other systems. If no spark occurs, check ESC controller 10 pin connector and 4-wire connector from controller to distributor.
  2. If connections are good, check voltage from pin "K" to pin "F" at 10 pin connector. If under 7.0 volts, check for open circuit between pin "F" and ignition switch. If 7.0 volts or more, disconnect 4-wire connector at distributor. Disconnect 10 pin ESC controller connector.
  3. Check for continuity of harness wires at pins "G", "H", "J", and "K". If no continuity from end-to-end, repair bad wires. If continuity exists, install a jumper wire on distributor side of 4-wire connector, between pins "A" and "C". Start engine and run at idle speed only.
  4. If engine does not run, proceed to step  5). If engine runs, replace ESC controller. If problem still exists, reinstall jumper wire between terminals "A" and "C". If engine does not run, check distributor according to HEI instructions in this section. Repair as necessary and reconnect ESC controller.
  5. If engine would not run in step  3), check distributor according to HEI instructions in this section. Reconnect jumper wire between terminals "A" and "C" after distributor is repaired (if necessary). If problem still persists, replace ESC controller.
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