Dynamic/Valve Control - BMW 745i Repair Instructions

BMW745iA
: 02 L·Jetronic Oynamic/valve control
Injector, cylinder 1
(lead 15)
2
(lead 33)
3
(lead 32)
4
(lead 14)
5
(lead 30)
6
(lead 31)
Fuel pump pressure
(vacuum hose detached at pressure regulator)
Engine speed
Control unit No.
0280001124
2.3 ... 2.7 bar
I
Imin
Test 1. Conn. needed: T·plug at wiring harness and control unit, diagn. plug, pressure sensor
sequence: 2. Input number of cylinders with
[EJ
(unless test step 01 has just been carried out)
3. Start the engine: < must go ouf
4. Increase engine speed to ? 4000/min, then close OK (throttle butterfly) rapidly. The text
PULSE MISSING must appear momentarily (but not at constant engine speed)
5. The corresponding injector is kept closed by pressing the number of the cylinder and
~
. . Engine speed will droE. To cancel :
lei
I
If nominal values are not reached: carry out test steps 03 ... 08; if speed drop is not uniform: injectors are
contaminated wi th dirt.
Further information on workshop manual microfiche, job Nos. 1363544