Rebuild Porsche 928 Lh

System: L01 LH-JET Ser. No,: 92861812313 RB. No.: 0280002507

After pressing the key > , a selection menu is displayed: After the last displayed error, the following instruction appears:

Menu

1 = Fault memory

2 - Drive links

3 = input signals

Proceed with key >

c Menu

1 = System adaptation

Repair fault according to repair instructions

Continue: >

In the example - press key t. There then foliaws the display of the number of errors which are stored (if any).

Number of faults

Proceed with key

Additional info to every display with key 1 continue:

Proceed with key Error output:

1: Engine temperature sensor 2 Short to ground not present

If key 1 is pressed instead of the key, the corresponding error code display appears (the last two digits of the flashing code).

Proceed with key >

Further errors are displayed (if they exist):

2: Idle contact

Short to ground present

If keyl is pressed instead of key the corresponding error-code display appears (the last two digits of the flashing code).

Return to display "No. of errors" with key 3. proceed with key 1:

Fault memory 1 = Erase 3 = Do not erase

(f key 3 is pressed: = Return to menu "error memory", The error memory is not erased I

Proceed with key 1:

Fault memory has been cleared

Return:

The test scope "Read-out error memory" is terminated at this point.

3.2 Actuator diagnosis

If a n actuator is selected, this is triggered by the ECU so that it ca n be checked for correct functioning.

The various actuators components are gone through one after the other and are selected with the key.

Operate the Systemtester 9288 as described under 3.1 until the following menu display appears:

Menu

1 = Fault memory

2 = Drive links

3 - Input signals

After pressing key 2, the display for the first actuator appears:

Injector to activate 1 - Start Continue :

If key is pressed, the next actuator is selected. Pressing key 1 results in the following instruction:

Key 1 selects the next actuator (e.g. idle actuator). Following instruction:

Repair fault according to repair instructions Continue:

After pressing key the following display appears:

Injector to activate 1 - Start Continue:

Proceed with key 1

Proceed with key 1 to the next actuator.

Idle stabilizer to activate 1 - Start Continue:

Proceed with key 1

Can idle stabilizer be heard / felt ?

By pressing key 1, the next actuator is selected. After pressing key 3, the next instruction appears:

Repair fault according to repair instructions Continue:

Proceed with key

Idle stabilizer to activate 1 = Start Continue :

After pressing key 1, the following display appears:

Can idle stabilizer be heard / felt ? 1 = yes 3 = no

By pressing key 1, the next actuator is selected.The actuatorsare selected one after the other and triggered until the following display appears:

Drive link test completed

Return: N

By pressing the key N, the operator is returned to the menu.

3.3 Circuit inputs

In addition to the actuators, the Syslemtester 9288 can also check circuit inputs. To this end, operate the Systemtester 9288 in accordance with 3.1 until this menu display appears:

Menu

1 = Fault memory

3 = Input signals

Press key 3

Idle contact 1 = Start

Continue:

By pressing key the next circuit input is selected. The next display appears when key 1 is pressed.

Activate accl. pedal die contact - closed -Continue:

Operate the accelerator pedal, the following display appears:

Activate accl. pedal Idle contact - upen -Continue :

The next circuit input is selected by pressing key Repeat until this display appears:

Input signals testing completed

Return:

Press key N for return to menu

3.4 System adaptation

When the function "System adaptation" is triggered, the ECU registers the basic air requirement of the engine. To this end, operate the Systemtester 9288 as per 3.1 until the following menu display appears:

Menu

1 = Fault memory

2 = Drive links

3 ^ Input signais

Proceed with key

Menu

1 = System adaptation

Proceed with key 1

Prerequisite: Eng. at oper. temp, with all consumers and ignition off.

Proceed with key >

System adaptation 1 = Start

Return:

If key N is pressed = return to menu.

If key 1 is pressed :

Following engine start there appears:

System is being adapted

Please wait I

After approx. 30 sees there appears:

System adaptation completed

Return: N

if it is impossible to carry out system adaptation (idle contact not closed, or defective!, the following display appears:

No system adaptation possible Idle contact ? Return; N

After completion of the system adaptation, return to the menu wiih key N.

The particular system can be selected by means of key 1, 2 or 3. For instance with key 2 the following display appears:

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