Power Arc Ignitions

Precision Performance for 1, 2, 3, 4, 6 & 8 Cylinder Engines

Please refer to your owners manual for timing procedures and wiring diagrams.  Make sure you are running resistor plugs and resistor plug wires or Power Arc approved high resistance spiral wires.  Check out the Spark Plug and Spark Plug Wire Specifications page.  If troubleshooting the ECP (Edge Card Programmer) click here.
Problem: Engine dies when running or appears to have a low Rev. limit
  •  Poor connections in ignition circuit (breaker, ignition switch & kill switches).
  •  Check heat shrunk connections closely (wires break at connector crimp/solder joint).
  •  Run basic wiring test (see bottom of page).

Problem: Only one cylinder will fire

  •  Bad coil, spark plug, or spark plug wire.
  •  No +12 VDC to coil + leads.
  •  Module wire not connected to coil or wire broken internally or inside of connector.
  •  Pinched or shorted coil trigger wire.
  •  Blockage of optical sensor (clean with alcohol).
Problem: Hard starting or engine starts when starter button released
  •  Weak or undersized battery please perform test at bottom of page.
  •  Poor connections in ign. circuit to coils (breaker, ign. & kill switches).
  •  Incorrect timing.
  •  Spark plug gap too large.
  •  Poor ground connection from battery to frame.
  •  Improper coil choice.
Problem: Erratic operation, tach bounce
  • Solid or low resistance spiral core spark plug wires being used.
  • Rotor pins or Encoder slots rusted or blocked by debris.
  • High resistance connection on ground loop from ignition module.
  • Defective charging system.
  • Blockage of optics in sensor plate or ignition.
Problem: Static timing LED stays is locked on
  • Blockage of optics (clean with alcohol).
  • Defective Ignition.
Problem: Kicks back when starting
  • Static timing too advanced recheck static timing.
  • Voltage drop to ignition (see test at bottom of page).
  • Ignition timing too far advanced.   Recheck static timing or change timing map.

Problem: Ignition will not retard under heavy load or acceleration

  • VOES wire or sensor wire on ignition module not grounded.
  • Defective VOES or vacuum switch.
Problem: Tail pipes blue, hollow sound in pipes, runs sluggish
  • Ignition static timing too far retarded.
  • Ignition timing too far retarded.   Recheck static timing or change timing map.
  • VOES or vacuum switch not operating or activating at wrong vacuum.
  • Bad connection from wire to VOES or vacuum switch.
Problem: Spark present at plugs with occasional back fire or wont start
  • Incorrect timing.  Recheck Static timing.
  • Make sure plug wire is attached to the correct coil.  Refer to owner's manual.
Problem: Pinging when leaving the line
  • Timing to far advanced.  Recheck static timing or change timing map.

Problem: Pinging in the midrange

  • Timing too far advanced.  Recheck static timing or change timing map.
  • VOES or vacuum switch not operating or activating at wrong vacuum.
  • Bad connection from wire to VOES or vacuum switch. 

Basic Wiring Test *

  • Jump a wire from the (+) of the battery to the ignition coil (+).  Do not hook power to the ignition module coil trigger wire or you could damage the module and void your warranty.  Please refer to your owner's manual for wiring details. Remember to disconnect the jumper wire when finished with the test.  The jumper wire must be removed to stop the engine from running.  Test the engine to see if proper operation has been restored.

  • If the problem is remedied with the above jumper wire test jump a wire across any of the suspected components (ignition switch, kill switch, breakers) to determine which component is causing the power loss.  Check for bad connections at crimps or busted wires. Wires that have been soldered at the connector are particularly vulnerable to breakeage.  

  • Replace the defective component when located.
*Only perform jumper wire tests long enough to determine if  the power wiring is a problem and remove the jumper when finished.  Perform test in a safe enviroment away from high traffic areas.

NOTE: Any module returned under warranty must include a note of explanation of failure & be accompanied by a dated bill of sale. If out of warranty or if proof of purchase date cannot be established there will be a $25.00 Charge to cover testing, shipping.