2001 BMW 525i air flow

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Page 432 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
.- 
/Fuel Injection 
I  I - I 
9 /ln~ut l~oltaqe supply I Fuse carrier, engine electronics 
Table 
c. Siemens  MS 42.0  and MS 43.0  ECM  pin

Page 433 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
130-43 
Fuel Injection ] 
I I I 
12 llnput IFeedback signal, engine start /Starter 
Table c. Siemens  MS 42.0 and MS 43.0 ECM  pin assignments

Page 439 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
- Fuel Injection 
ECM relay, testing 
The engine control module (ECM) relay is energized via  the 
ECM and  supplies battery positive 
(B+) po

Page 443 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
Fuel Injection I 
4 Release spring  clips (arrows) from fuel injectors and  pull in- 
jector  electrical  loom straight  up to remove. 
4 Chec

Page 449 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
130-59 
Fuel Injection 
:-- -i. Evaporative emissions 
1. 
control diagram  (M5.2.1) 
i 1 
i I @ 1. ECM r.=.:-:, 2. Purge valve 
3. Leak detec

Page 450 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
130-60 
/Fuel lniection 
Tabled. Bosch M5.2 ECM pin assignments 
Note 
Pin 
21 
20 I output / Crankshaft position sensor (speed and position)

Page 453 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
Fuel lnjection 
Table e. Bosch 5.2.1 ECM pin assignments 
Pin 
Isignal 1 Description 1 Note 
Connector 
X60003 
1 
2 
3 
4 
5 
6 
7  8 
9  10

Page 463 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
( Mass Air Flow  Sensor 
1" Intake air  temp. (NTC) 
Sensor qround 
Reference voltage . .  . -., f fitr mass signal I 
Fuel Injection I 
Relea