Clint's B6 2.7T Build/Swap

[AudiA4_20T]

Did you already sell the S4?

Yes

how is the green and brown wire RED plug that goes to ECU pin 74 ran on your guys cars? in this thread pin 13 on j104 was mentioned, but a wire is absent at this pin location,(on j104 abs pug) i have a powertrain comm error in vcds any one else struggle through this?

I never hook up the ABS wire... You need to specify what the code is

[stringerb3ll]

18258/P1850 - Powertrain Data Bus: Missing Message from ECU, my ecu is codes 06711 for abs, and its wierd when i go to 03 (ABS/ESP) i can see throttle position in the abs module's mesuring bank, so the abs module is getting some information from the ECU, but when i go to banks 08 (something to do with another error im trying to fix it has error and has half german words on the vcds bank values and not numbers.

[LOWLIFE_S4]

So was this a B6 S4? If so did you ever get it to run with the 2.7?

[AudiA4_20T]

18258/P1850 - Powertrain Data Bus: Missing Message from ECU, my ecu is codes 06711 for abs, and its wierd when i go to 03 (ABS/ESP) i can see throttle position in the abs module's mesuring bank, so the abs module is getting some information from the ECU, but when i go to banks 08 (something to do with another error im trying to fix it has error and has half german words on the vcds bank values and not numbers.

I have no idea man. Does everything else work?

So was this a B6 S4? If so did you ever get it to run with the 2.7?

Yes and yes I guess you haven't read the thread...

[stringerb3ll]

yeah everything's fine now i guess... codes come and go in vcds, i just notice everyone with my liliput carpc with centrafuse/vagcom plugin. My CEL has stayed off for the most part though, so if i can figure out how to code these things out my ecu i would say im 100% satisfied, ill post pictures and a 1/4 mile video in next couple weeks. My lpg conversion is also working very well also using a STEG controller and a 100CC lpg injectors and a 360hp reducer. i coded out the egts i was getting errors while on LPG while they were active

[mikelson]

Guys, please help with the radiator. Need advice. The water temperature in the engine is too high (above 115 C). Can anyone tell, i have connected the 1 and 2 hole (pic. 1). May be i should have cap it? How did you done the radiator? Because, the 3,0 has 3 holes (pic. 1) and the engine 2,7 has 2 (pic. 2).



pic. 1



pic. 2

[mikelson]

anybody?

[LINDW4LL]

I am confused by your question.

The two ports I've circled are the ones you should be using. The one with the "X" should be capped off.

[65vetteC6]

I capped the drivers lower hole.

[mikelson]

LINDW4LL - The two ports I've circled are the ones you should be using. The one with the "X" should be capped off.

65vetteC6 - I capped the drivers lower hole.

Thank you. I'll do as you say and hope the problem with the water temperature will be resolved.

[mikelson]

Guys, if anyone knows please tell me, how and where connect the hose 23 and 27 (pic 2.). I think 27 hose must be as it shown on pic 1. But what about 23? I capped it off. Is it correct move?

[mikelson]

Does it somehow related to the fuel level in the engine, or to the normal work of engine (without misfires and shut the engine off by itself)?

[AudiA4_20T]

They shouldn't relate to the engine running properly. Did you hook up the other N80 stuff?

[mikelson]

They shouldn't relate to the engine running properly. Did you hook up the other N80 stuff?

No, not yet. Do you think, this problems with engine may be because of N80? When i remove the fuel tank cap, the engine runs better, there is no hard symptoms of misfires and the engine doesn't turns off by itself. It is not runs perfectly but there is big difference. I thought this is because of the vacuum reservoir connection. Do you have any ideas?

[LINDW4LL]

Can you post any fault codes?

[mikelson]

Can you post any fault codes?

Most of all those ones are:
1. In ABS - 18265 - Load signal - Error message from ECU - P1857 35 00
2. In engine - 16486 - Mass air flow sensor (G70) - signal too low - P 0102 35 00
3. In engine - 17545 - Fuel trim: bank 1 (add) - system too rich - P 1137 35 00
4. In engine - 17547 - Fuel trim: bank 2 (add) - system too rich - P 1139 35 00

[mikelson]

besides: tachometer sometimes is not stable (seems engine must turn off itself, but something tries to make engine running, so the tachometer running from about 0,3 to 1,5 indicate on the dash), engine is turning off by itself, there is hard vibration too. Sometimes car works well. I think i have a problem with fuel feed, but the fuel pump is not the reason of it (3 times changed and the result is the same).

[AudiA4_20T]

it sounds like you have a huge vacuum leak somewhere

[mikelson]

it sounds like you have a huge vacuum leak somewhere

That means the N80 is not the reason? And when i stop the car more than 1 day, the brake pedal becomes very hard and heavy before i start the engine running. After start the engine, the pedal comes normal again. Is this somehow relates to my problem with vacuum?

[noznab]

To anyone on the fence about this...just do it! The build itself doesn't have to be that expensive. Picked up a running APB with 120k + all accessories, harness, trans plate, intercoolers etc for 500 bucks a few weeks ago!

[mikelson]

Hey guys, can anyone tell, what is the normal working temperature of water in 2.7t engine? After swap, in my engine the water temperature reaches 107 degrees of celsius (225F), is it normal temperature or i should worry about it?

[mikelson]

Guys, help me, somebody changed the sub-paws? Well, I had a 3.0, and I thought that i should not change the legs and put 2.7 (on a 3.0 motor mount leg on the car) like without problems, but felt the vibration during the stroke without pressing the accelerator when switched in to speed. And besides shifter changed (I have not changed the transmission, it is the factory one), that is, when the shift to first gear, car goes back. I think this is what the engine is probably worth wrong. And I can not lower the maximum water temperature below 108C degrees (225 F), I have 3 fans, but they can not ensure the normal temperature of your working At least 96-98C degrees (204-208 F). Someone encountered such problem? Any idea would be welcome.

[AudiA4_20T]

Guys, help me, somebody changed the sub-paws? Well, I had a 3.0, and I thought that i should not change the legs and put 2.7 (on a 3.0 motor mount leg on the car) like without problems, but felt the vibration during the stroke without pressing the accelerator when switched in to speed. And besides shifter changed (I have not changed the transmission, it is the factory one), that is, when the shift to first gear, car goes back. I think this is what the engine is probably worth wrong. And I can not lower the maximum water temperature below 108C degrees (225 F), I have 3 fans, but they can not ensure the normal temperature of your working At least 96-98C degrees (204-208 F). Someone encountered such problem? Any idea would be welcome.

on the water temp gauge in the car, is the needle at the center? It sounds like your thermostat may be stuck shut. I used the 2.7T motor mount "legs"

[mikelson]

on the water temp gauge in the car, is the needle at the center? It sounds like your thermostat may be stuck shut. I used the 2.7T motor mount "legs"

No, the thermostat is working for sure, besides, i changed it 2 months ago and the result is the same. How can i make the water temp go down, everything seems ok.
And, did you use the both 'legs', or only one side? I thought the 2,7 and 3.0 'legs' are the same.

[AudiA4_20T]

if your thermostat, waterpump, and fans are working there's no other possible ways it can be overheating

[S4iowa]

if your thermostat, waterpump, and fans are working there's no other possible ways it can be overheating

It can if the system doesn't hold pressure. Which means there's a leak.

[blitz2190]

did you ever bleed the system? air will deffinitely cause it to overheat.

[S4iowa]

I am confused by your question.

The two ports I've circled are the ones you should be using. The one with the "X" should be capped off.

What did you use for a cap? Have a part number for the fitting?

[AudiA4_20T]

What did you use for a cap? Have a part number for the fitting?

Go to a junkyard and find a VW fitting that goes over that, then Advanced Auto Parts has a $4 cap kit

[Haenszel20v]

Go to a junkyard and find a VW fitting that goes over that, then Advanced Auto Parts has a $4 cap kit

What VW's have that cap? Passat only?

[AudiA4_20T]

What VW's have that cap? Passat only?

It's a generic VW coolant end fitting. Can't remember what I found it on, it's just smaller than the standard ones


Sent from my iPhone using Tapatalk

[LINDW4LL]

What did you use for a cap? Have a part number for the fitting?

Here's the one I have written down.

4D0133335


Sent from my iPhone 6 using Tapatalk

[mikelson]

Guys, where you have to pull the wire from the black connector 2.7 pin 2 (green / blue)?

And please help with these wires: Others like everything is connected.

1. where shall i connect the wire from white connector pin 14 on A4 B6 (gray/white)? On the relay for the starter and where else (pin 39 on the ECU may be)?
2. where shall i connect the wire from red connector pin 10 on A4 B6 (red/white)?
3. where shall i connect the wire from red connector on 2.7 wire pin 2 (black/yellow) and pin 3 (black/gray)?

Can not find anything.

[mikelson]

??????

[blitz2190]

??????

do you have the two wiring diagrams, or more like the two manuals with the diagrams? Find the signal on one match it with the other. and if it its a signal (from a sensor or pot) make sure its biased the correct way such as one of the gas pedal pots its wired backwards i believe.

[mikelson]

I have no any diagrams, i can not read them by myself (without help), i tried ELSA and ETKA, but useless. I don't know where connect them. Need experience. who and how has connected them?

[blitz2190]

I have no any diagrams, i can not read them by myself (without help), i tried ELSA and ETKA, but useless. I don't know where connect them. Need experience. who and how has connected them?

no offense but you shouldn't have attempted to wire something if you don't know how, bring it to someone who know what they are doing. not to mention a mod like this with no supporting documents to help or refer to is slightly stupid. If you at least get the diagrams i can try and help you read them.

[Joey0918]

Even to this Day this is still a good read!

[polishdupa]

Guys, please help with the radiator. Need advice. The water temperature in the engine is too high (above 115 C). Can anyone tell, i have connected the 1 and 2 hole (pic. 1). May be i should have cap it? How did you done the radiator? Because, the 3,0 has 3 holes (pic. 1) and the engine 2,7 has 2 (pic. 2).



pic. 1



pic. 2

Correct me if I'm wrong but if you don't block of #2 on the rad you won't have coolant flowing across the radiator.

[sandspeed]

Has anyone gotten cruise control to work? There are some who think you need to use a B5 cruise control stalk for this.