Operation CHARM: Car repair manuals for everyone.

Test Point 11 - Fuel Injectors

TEST POINT 11 - DME 944

Fuel Injectors




If the engine can be operated, pull off fuel injector plugs separately.
Engine speed must drop each time, if injectors are in perfect operating condition.

If engine cannot be operated:

Pull off fuel injector plugs.
Turn on ignition.
Connect voltmeter on ground and plug pins.

Display: 10 V

Connect L-Jetronic test lead on plug connection of fuel injectors and it in turn on an ohmmeter.
Check coil resistance.

Display: 2 - 3 ohm