Pocong Build Thread

[VWindahouse]

Hey bud, any updates??

[firdausasri]

Hey bud, any updates??

Hi,

Sorry for late reply as I was bugged with lots of work at the office. The car is now running a little bit better after iron out wiring issues causing 6 sensors to caused CEL. Still waiting for FT specific map file from Unitronic (coming to 3 weeks now)...

[firdausasri]

I might end up with run-of-the-mil Stg2+ map file by next week if there's still no news ...

[h100vw]

I might end up with run-of-the-mil Stg2+ map file by next week if there's still no news ...

Be pretty careful running non-specific maps. I know my own Polo runs away big time. Not too worried with it having rods but you would be advised to maybe to run with the N75 disconnected as a small concession to insurance, until it gets a real map and some logging.

Gavin

[firdausasri]

Be pretty careful running non-specific maps. I know my own Polo runs away big time. Not too worried with it having rods but you would be advised to maybe to run with the N75 disconnected as a small concession to insurance, until it gets a real map and some logging.

Gavin

Fully agree. Since the stg2+ remap meant for K04-015, do you think it'll be that bad for FT21 (newer F4T) turbo?

[noone]

Same MAF, injectors, etc?

Seems like they are just as important if not more important than dealing with the nuances of boost.

[firdausasri]

Same MAF, injectors, etc?

Seems like they are just as important if not more important than dealing with the nuances of boost.

I'm running on 3" MAF and 415cc injectors (alternative option would be 380cc injectors with 4 bar FPR)...

[noone]

Sorry, same as the tune you are thinking of using.

[h100vw]

I'm running on 3" MAF and 415cc injectors (alternative option would be 380cc injectors with 4 bar FPR)...

The map needs to be scaled for the big MAF, or it'll run weak as hell. I would run bigger injectors and 3 BAR over the 4 BAR, personally. Don't forget that as the boost increases, fuel pressure rises to compensate. So eventually it'll be supplying 5.5BAR which would be 1.5 over what VW intended for the stock pump.

We won't tune without an S3/uprated fuel pump onboard. Besides the risk of blowups, it can waste lots of time tuning while you work out why it's always lean.

USRT do a Genesis drop in that isn't quite a drop in but works fine.

APR use a 4 BAR and std pump with their K04 but the majority of those I imagine, would have been on fairly new cars. There would have to be a point where the pump begins to degrade. I won't be looking to find that point

gavin



Gavin

[firdausasri]

The map needs to be scaled for the big MAF, or it'll run weak as hell. I would run bigger injectors and 3 BAR over the 4 BAR, personally. Don't forget that as the boost increases, fuel pressure rises to compensate. So eventually it'll be supplying 5.5BAR which would be 1.5 over what VW intended for the stock pump.

We won't tune without an S3/uprated fuel pump onboard. Besides the risk of blowups, it can waste lots of time tuning while you work out why it's always lean.

USRT do a Genesis drop in that isn't quite a drop in but works fine.

APR use a 4 BAR and std pump with their K04 but the majority of those I imagine, would have been on fairly new cars. There would have to be a point where the pump begins to degrade. I won't be looking to find that point

gavin



Gavin

Gavin,

Now you've made me realized that I've been abandoning the importance of fuel pump. Could you share the link of that Genesis fuel pump? Thanks.

[h100vw]

Gavin,

Now you've made me realized that I've been abandoning the importance of fuel pump. Could you share the link of that Genesis fuel pump? Thanks.

Genesis Mk4 High-Flow Intank Pump : USRT, Usually Sideways Rally Team

It's obviously the std pump from something else but they have taken a grinder to the part number.

ECS sell the APR one.

Go through my thread to see what you need to do to fit it. The Polo and Golf have a couple of differences in teh basket.

Gavin

[firdausasri]

Another setback today, Unitronic software can't detect ECU via OBD2 and encounter error message (can't remember what it is..) when loading stg2+ map via "on bench" reflash. Very funny because no such problems when using VCDS....sigh

[h100vw]

Another setback today, Unitronic software can't detect ECU via OBD2 and encounter error message (can't remember what it is..) when loading stg2+ map via "on bench" reflash. Very funny because no such problems when using VCDS....sigh

Force bench flash mode

Gavin

[firdausasri]

Force bench flash mode

Gavin

Gavin,

Is there any possible reasons why this thing happened? Fried ECU or relay or cables?

1. Via In-Car OBD2 port: Uni software couldn't detect ECU profile. ECU ID / Number : 06A906032TL | 261208950
ECU Revision / Software # : 0040 | 1037378104

2. Via On Bench: 1) Uni software able to detect the ECU profile
2) Able to download stg2+ map from Uni website and save it on the PC.
3) Encounter error during uploading the map to the ECU (can't remember what error message is though...)

Notes: There's no problem in performing diagnostic checks using VCDS software (via in-car OBD2 and On-Bench) and the engine is running without CEL (or any other error codes).

[h100vw]

Gavin,

Is there any possible reasons why this thing happened? Fried ECU or relay or cables?

1. Via In-Car OBD2 port: Uni software couldn't detect ECU profile. ECU ID / Number : 06A906032TL | 261208950
ECU Revision / Software # : 0040 | 1037378104

2. Via On Bench: 1) Uni software able to detect the ECU profile
2) Able to download stg2+ map from Uni website and save it on the PC.
3) Encounter error during uploading the map to the ECU (can't remember what error message is though...)

Notes: There's no problem in performing diagnostic checks using VCDS software (via in-car OBD2 and On-Bench) and the engine is running without CEL (or any other error codes).

If you can still connect with VCDS there's probably nothing wrong with the ECU. I have had my immo defeat ECU disappear completely off VCDS and recovered it after a bit of persistence. You already have Unitronic, correct?

Gavin