Gxt Ferret 54 ENGINE DIAGNOSTIC CENTER Manuel d'utilisateur télécharger pdf (Page 56)

If the

Magnetic TDC

timing test is to be run, SELECT an offset and press NEXT.

If the

Strobe Light

timing test is to be run, use the fingertip control buttons to align the

mark with TDC and press the SAVE DATA button on the light or the NEXT key on the

Diagnostic Center. The screen will prompt you to raise the RPM to 2500. Raise the

RPM, align the mark, and SAVE DATA again. In the magnetic test, a reading will be

taken automatically once the engine reaches 2500 RPM.

If a DIS engine was selected during

Engine Setup

, or the Diagnostic Center was

unable to suppress the ignition during the Starting/Charging History test, the

Power

Contribution

test will be run next. The screen will show:

Engine Warm - Disable Engine Control

Switch off all accessories.

Switch heater fan & lights on HI.

Press ÛNEXT to continue.

Press NEXT, and the power contribution graph will appear:

OK ï ü ü ÿ ï

~ ÿ ÿ ÿ ÿ ÿ ÿ ÿ ÿ

LOW§§ÿ§§ÿ§§ÿ§§ÿ§§ÿ§§ÿ§§ÿ§§ÿ§§

Cyl 1 3 7 2 6 5 4 8

On a distributor engine with the coil (-) lead connected, the

Power Balance

test is run.

In that case, after pre-test preparations are made as above, this screen appears:

Start 1150 RPM Killing End 1030 RPM

%Drop 10 11 10 9 10 3 10

Cyl # 1 3 7 2 6 5 4 [8]

The readings will be displayed while ignition to each cylinder is suppressed in turn.

4-27

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 101 102

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Gxt Ferret 54 ENGINE DIAGNOSTIC CENTER Manuel d'utilisateur Page 56