The three waveforms below are taken from the #1 and #4
injectors. The top waveform is from the high side (feed side) of the #1
and #4 injectors, while the middle waveform is from the low side (ground
side) of the #1 injector and the bottom waveform is from the low side
of the #4 injector.
The middle waveform is the same as the top waveform because
there is no ground for the circuit. With no current flowing in the
circuit, the #1 injector is not energized and fuel does not flow.
The bottom waveform shows that ground is supplied and there
is a voltage drop across the #4 injector. With current flowing in the
circuit, the #4 injector is energized and fuel flows.
Repair procedures
Removal
1.
Remove the radiator upper cover.
(Refer to the BD group - "Front bumper")
2.
Remove the bolt and disconnect the horn connector, then remove the low pitch horn (A).
Installation
...
Front windshield wiper blade
1.Raise the wiper arm and turn the wiper blade assembly to expose the plastic
locking clip.
CAUTION - Wiper arms
Do not allow the wiper arm to fall against the windshield, since it may chip ...