EVO: Engine Control - Sub-03a

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====== EVO: Engine Control - Sub-03a ======
====== Cleaning Fuel Injectors ======

**Notes**:
Disconnect the fuel line and purge the high pressure: \\
  * To prevent spray of fuel, purge system of high-pressure fuel before supply line is disconnected. \\ Gasoline is  extremely flammable and highly explosive, which could result in death or serious injury. 
  - Remove left side cover.
  - Remove fuel pump connector from ECM caddy cover.
  - Unplug fuel pump connector.
  - Start engine and allow vehicle to run.
  - When engine stalls, operate starter for 3 seconds to remove any remaining fuel from fuel hose.
  - Shut off ignition.

Pulling the injectors is pretty easy once you have the above done. \\
Then,\\
  - Remove the bracket from the intake manifold.
  - Disconnect the electrical connectors from the injectors (there are two, one to each injector).
  - Gently rock the fuel rail back and forth to remove the rail and injectors (not too gently).
  - Pull the injectors from the fuel rail.

Once you have the injectors out, you can use a trickle charger for the 12v power supply. \\
Cleaning the injectors: \\
  - Find the correct size holder for the injectors.
  - Push the injector all the way into the holder.
  - Connect the power lead to the injector (not to the battery yet).
  - Connect one end of the power lead to the 12v source (trickle charger in this case).
  - Put the holder onto the carb cleaner can and pressurize it (keep a hold of the injector too).
  - Energize the injector and watch it spray across the room and go from a tiny amount to much larger as it gets clean. \\ Only used pulses of power. Do not leave it connected.
  - Remove power, release pressure on the injector holder.
  - Remove the injector from the holder, reverse it and do it all again, then reverse it again.
  - Do the same to the other injector. \\ Put it all back together (as long as your O-rings are still good) and enjoy!


\\


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Trace: • REF: Engine Mechanicals - Sub-07A • MiscRes: Magazine Articles • REF: Oiling & Lubrication - Sub-05H • REF: Tools - 140 • EVO: Engine Mechanicals - Sub-04E

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