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EFI USING INSTRUCTION
Troubleshooting and counteractions
Symptom
Cause
Counteraction
Engine won’t start
or stops working.
No fuel flows out of fuel
pump injector
Fuel level is too low
Refill fuel
No voltage on pump connector
Check the fuse and pump relay
Pump connector contact poor
Check and re-insert connector
Faulty fuel pump
Check and replace
Fuel pump works, high
voltage cable works
Low battery voltage is causing low fuel pressure
and low winding discharge voltage
Charge or replace battery
Spark plug carbon deposits or wrong spark plug
gaps
Clean carbon deposits or adjust spark plug
gaps
Fuel hose leaks causing reduced fuel pressure
Check fuel hose
High voltage cable does
not work
Ignition coil input “+” terminal has no voltage
Check fuse
Poor contact of ignition coil inserts
Check ignition coil inserts
Idling speed not stable
Fuel pressure too low
Check fuel pressure
No power
Fuel pressure too low
Check fuel pressure