NefMoto > Technical > Reverse Engineering > Powering the ECU for my B6 2.7T Swap... Need B5 S4 help
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Author Topic: Powering the ECU for my B6 2.7T Swap... Need B5 S4 help  (Read 9832 times)
AudiA4_20T
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« on: January 24, 2012, 09:33:23 AM »
Hey guys, so I have the car almost done and it's just about started

http://www.youtube.com/watch?v=4XdwODnsrfQ

But it's not getting fuel, meaning the ECU isn't triggering the fuel pump relay, meaning the ECU might not be on, meaning that I might have my wiring wrong...

Using this diagram



I have pin 62 getting the 30 terminal, but it says pin 3 gets the 15 terminal (switched power), which looks like the black wire with the blue stripe. On the B6 the same wire seems to not go to switched power?
« Last Edit: January 24, 2012, 09:35:19 AM by AudiA4_20T » Logged
Tony@NefMoto
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2001.5 Audi S4 Stage 3
« Reply #1 on: January 24, 2012, 12:11:09 PM »
If I recall correctly, pin 3 is switched power based on the ignition.

You should attempt to communicate with the ECU via NefMoto or VAG-COM to make sure it is powering up.
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AudiA4_20T
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« Reply #2 on: January 24, 2012, 02:47:12 PM »
Yea, wish I could make a bench harness. Unfortunately I don't. When I get down to the shop I might have one. We will see.
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Tony@NefMoto
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2001.5 Audi S4 Stage 3
« Reply #3 on: January 24, 2012, 02:55:18 PM »
Quote from: AudiA4_20T on January 24, 2012, 02:47:12 PM
Yea, wish I could make a bench harness. Unfortunately I don't. When I get down to the shop I might have one. We will see.

Can't you just use the OBD port on the car?
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RaraK
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« Reply #4 on: February 06, 2012, 10:05:12 AM »
I found OP's original post, here it is because i immediately got excited when i saw B6 and 2.7tt Tongue

http://www.audizine.com/forum/showthread.php/428506-Clint-s-B6-2-7T-Build-Swap
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Aragorn
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« Reply #5 on: February 15, 2012, 08:16:48 AM »
Why are you even looking at connections on the ECU?

The stock harness just plugs into the ECU and shouldnt need touched.

The connections all should be made at the 5 multipin plugs that join the engine harness to the car.
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