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tarmac666
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Last seen: 1 year 4 months ago
Joined: 12/27/2016 - 10:16
R32 VR6

Hi All,

I have purchased a new 30-7106 infinity 6.

I am trying to set this up for an R32 VR6 3.2 (mk5) engine which is in a difference chassis.

The engine itself it on stock injectors at the moment and running on the mk4 bosch ME7 ecu, albeit without cam advance control etc.

I am trying to set this up and have done the following.

R32 firing sequence is 1-5-3-6-2-4 which maps to AEM Cylinders seq of 1-3-4-2-5-6. I selected custom engine firing sequence and set Cyl1=0, Cyl2=240, Cyl3=360, Cyl4=120, Cyl5=480, Cyl6=600. Injectors of 540, 60, 180, 660, 300, 420.

Its VR crank and hall effect cam (I believe), 60-2 wheel. When I select the VW MKIV 1.8T (2002-2005) it gives me 100% start probability along with 1 on each of the Ign Power, Sync State, Spark and Injector.

Crank Timing Error increments on every engine start attempt

See log attached for start up. Crank and Cam duration seem to be very noisy, is this normal for startup?

Crank Angle looks correct as far as picking up the crank timing?

As for the actual engine, no start. Not even an attempt to fire. Checked for spark and its there, plugs are a little wet so I am sure there is fuel also.

I am wondering of the 1.8T settings are correct as far as cam control teeth go? Also, I believe the VR6 fires 76 deg before TDC, unsure how I can change this with the AEM Settings?

Many thanks for any help guys.

Cheers

http://s000.tinyupload.com/index.php?file_id=68176171073772198781

http://s000.tinyupload.com/index.php?file_id=02046955371907396236

 

AEM_NS
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Last seen: 1 year 2 months ago
Joined: 06/06/2014 - 09:31
Everything looks fine in your

Everything looks fine in your log. You probably just need to sync the timing. The 1.8t cam has 4 teeth - 2 short and 2 long. As best we know it, the R32 has the same cam pattern. It seems the R32 firing order matches a normal inline 6 firing order. I don't understand what your cylinder "mapping" means. Did you not wire the coils and injectors as 1 to 1, 2 to 2, 3 to 3, and so on? If you wired it as such, you'd just select the normal 1-5-3-6-2-4 firing order and you wouldn't have to worry about custom firing orders or injector phasing.

tarmac666
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Last seen: 1 year 4 months ago
Joined: 12/27/2016 - 10:16
Hi, thanks for the quick

Hi, thanks for the quick reply :) and thanks for confirming I am on the correct track at least!

ok so it bought the ME7 1.8T AEM conversion cable and added the extra two ign/inj wires, so left the original 4 as they were.

I see the mapping as this:

IgnitionCurrent AEMCurrent Bosch PinCurrent Bosch Cyl
1C141021
2C13956
3C121035
4C11943
5C161102
6C151114

VR6 Firing Order: 1-5-3-6-2-4

        
        
Inj - VR6153624 
AEM134256 

So a little complicated but I believe would give me the correct firing order. Although I think I may just change the pinout as you say so make a little easier.

So I need to find out the cam sync offset, 106 in the 1.8T I believe?

Also the actual fire before TDC, which I believe to be 76-84deg BTDC, how can I confirm/enter that?

many thanks

AEM_NS
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Last seen: 1 year 2 months ago
Joined: 06/06/2014 - 09:31
It sounds like you have our

It sounds like you have our 3903 adapter harness - perhaps that's what you're referring to with "AEM convertion cable". The coil and injector assignments were set to match AWP 1.8T so that probably explains the funky coil/injector assignments. Syncing the ignition timing is covered in the main Infinity user manual and has been covered numerous times on this forum. Get out a timing light and check the timing directly. Timing check is on flywheel on 1.8T - I'd guess that R32 is the same.

BTW are you in Europe? I was under the impression that all US MKV R32's were DSG. Do you have manual trans?

tarmac666
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Last seen: 1 year 4 months ago
Joined: 12/27/2016 - 10:16
Sorry I was not clear, yep

Sorry I was not clear, yep its the 3903 adaptor harness.

I have now changed all pins so AEM Inj/Ign 1 to mapped to VR6 Cyl 1, AEM2 to Cyl2... etc

Chosen 1-5-3-6-2-4 on the 1.8T cam/crank setup

Still no joy. I can’t find any details on the cam adjustment for the 3.2 R32 engine so is there a way to disable cam and just run off crank for now so I know its working or do I need to get an oscilloscope on the cam to work it out?

Yep, In the UK and have mated an 01E gearbox to the mk5 engine. Was working on the bosch ecu ok but lack of cam control led me to AEM J

tarmac666
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Last seen: 1 year 4 months ago
Joined: 12/27/2016 - 10:16
PS. Meant to say I also

PS. Meant to say I also believe it is indeed a 4 toothed cam wheel and by all accounts this chap here got his running with a similar setup

http://aemelectronics.com/?q=forum/idle-afr-help-36l-vr6 

AEM_NS
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Last seen: 1 year 2 months ago
Joined: 06/06/2014 - 09:31
I do not know what no joy

I do not know what no joy means. No sync? No fuel and spark? If getting fuel and spark without errors, sync the timing. Details about cam adjustment are not relevant at this point. You just need to get the engine to start and run which you won't be able to do unless you sync the timing.

BTW please be aware that the Infinity does not support exhaust VVC on this engine. The support is technically for AWP 1.8T which had intake VVC only.

tarmac666
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Last seen: 1 year 4 months ago
Joined: 12/27/2016 - 10:16
No joy means not starting,

No joy means not starting, 100% start Prob, all green and crank angle working etc..

Thanks, I will check the timing again and thanks for letting me know about the exahust VVT.

Cheers

324carl
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Last seen: 1 year 4 months ago
Joined: 01/29/2017 - 10:18
Hello. I'm just about to do

Hello. I'm just about to do the same thing as you and also in the U.K. I'm putting a mk5 r32 engine in my mk1 audi s3. Currently running the 1.8t pnp harness and I'm going to add injectors and coils 5-6 which will be easy enough but just not sure on the cam crank side of it. Did you have any joy getting it started? Also are you running just the single intake cam sensor and intake vvc? 

Thank you 

324carl
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Last seen: 1 year 4 months ago
Joined: 01/29/2017 - 10:18
The r32 engine uses a mag cam

The r32 engine uses a mag cam sensor unlike the 1.8t's hall

AEM_NS
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Last seen: 1 year 2 months ago
Joined: 06/06/2014 - 09:31
Mmmm not so sure about that.

Mmmm not so sure about that. Unless the UK variants are different, the US R32's definitely have Hall cam sensors.

Brumbassen
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Last seen: 4 months 2 days ago
Joined: 03/28/2018 - 11:32
How do you guys take apart

How do you guys take apart the 3903 to add extra wires ? 

AEM_NS
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Last seen: 1 year 2 months ago
Joined: 06/06/2014 - 09:31
You don't. It's a full over

You don't. It's a full over mold so you can't get into it without destroying it. Extra wires would need to be added externally.

Vr612vJetta
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Last seen: 5 months 1 week ago
Joined: 04/12/2019 - 10:19
Working on a 12v vrt. Did

Working on a 12v vrt. Did this ever work out? Getting same exact problem. I’ll check timing again

Corey hyskell