2001 a4 1.8T - ecu pin out and engine wiring diagram

Pages: [1]

« previous next »

Author

Topic: 2001 a4 1.8T - ecu pin out and engine wiring diagram (Read 7062 times)

vtraudt

Sr. Member

Karma: +4/-7
Offline

Offline

Posts: 377

	2001 a4 1.8T - ecu pin out and engine wiring diagram « on: January 22, 2021, 10:40:43 AM »

Car is a mess when it arrived, now cleaning up (delete/remove).
No N75 and now wires. Found (I think) wires.
But no +5V (IIRC, N75 has +5V and ECU switches to ground?)

Want to rewire the N75.

Can someone post pinout for the ECU (to find N75 signal wire)?
Can someone post wiring diagram for engine (to find +5V to tap into; I think it is shared with the 2 connectors under the intake manifold).
Also need to wire in a new connector. What pin is getting +5V, which pin gets ECU signal?


	Logged

2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock

macxxx

Sr. Member

Karma: +30/-1
Offline

Offline

Posts: 498

	Re: 2001 a4 1.8T - ecu pin out and engine wiring diagram « Reply #1 on: January 22, 2021, 03:30:55 PM »

what engine code? B5 or B6 chasis?


	Logged

birchbark506

Sr. Member

Karma: +11/-11
Offline

Offline

Posts: 414

	Re: 2001 a4 1.8T - ecu pin out and engine wiring diagram « Reply #2 on: January 23, 2021, 07:45:48 AM »

if you got the vin and are in North America send me a pm i can get the wiring diagram


	Logged

mdz

Full Member

Karma: +12/-1
Offline

Offline

Posts: 73

	Re: 2001 a4 1.8T - ecu pin out and engine wiring diagram « Reply #3 on: January 23, 2021, 07:57:16 AM »

This is for AWT engine but basic pinout is the same for all of them.


	Logged

vtraudt

Sr. Member

Karma: +4/-7
Offline

Offline

Posts: 377

	Re: 2001 a4 1.8T - ecu pin out and engine wiring diagram « Reply #4 on: January 23, 2021, 08:34:20 AM »

Quote from: macxxx on January 22, 2021, 03:30:55 PM

what engine code? B5 or B6 chassis?

2001 B5 A4 quattro manual
Installed cylinder head marking: AMB

Address 01: Engine Labels: 06B-906-018-AWM.clb
Part No: 4B0 906 018 CH
Component: 1.8L R4/5VT G02 0001


	Logged

2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock

vtraudt

Sr. Member

Karma: +4/-7
Offline

Offline

Posts: 377

	Re: 2001 a4 1.8T - ecu pin out and engine wiring diagram « Reply #5 on: January 23, 2021, 09:00:24 AM »

Quote from: mdz on January 23, 2021, 07:57:16 AM

This is for AWT engine but basic pinout is the same for all of them.

Thank you! Very helpful.

Found:
N75 plug has supply voltage on Pin 1 (will check which pin is 1), shared power on green/yellow wire with N80, N112 and N249.
ECU signal (diagram shows yellow/white; will check what color mine is) on pin 2, going to ECU harness pin 104 (N80 is 65, N112 is 9, N249 is 105).

What should I measure on the ECU wire with just key on, and with N75 activated running vagcom output test?


	Logged

2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock

Pages: [1]

« previous next »

Jump to:

Navigation

Personal Tools

November 23, 2024, 03:52:36 AM

Welcome, Guest. Please login or register.
Did you miss your activation email?

Navigation

Personal Tools

Search