Volkswagen 2.0T TSI (CAWA CAWB CBFA CCTA) SGDI-TSI PnP DI Pressure high overheating

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hashman_motorsports
Posts: 2
Joined: Fri Mar 10, 2023 10:13 am

Volkswagen 2.0T TSI (CAWA CAWB CBFA CCTA) SGDI-TSI PnP DI Pressure high overheating

Post by hashman_motorsports »

Volkswagen 2.0T TSI SGDI-TSI PnP DI Pressure high HPFP overheating
(CAWA
CAWB
CBFA
CCTA
CCTB
BZB
CGYA
CCZB
CCZA
CDAA
CCZC
CDAB
CCZD)

UPDATE: NEW BASEMAP SENT WITH UPGRADED FIRMWARE VERSION APPLIED WILL TEST AND REPORT BACK

Hey im running the SGDI-TSI on a Passat CC 2.0 CAWB

I am having trouble with the DI pump using the basemap sent by syvecs I get a very lumpy start up with DI pressure max when driven at 0%
and if running in that state for around 5 mins the DI pump overheats resulting in alot of smoke and plastic burning smell and the connector no longer attached to the DI pump see picture attached

I have contacted syvecs and had the ECU sent back and tested came back with a pass from QA

both fuel pumps worked great on the original VW ECU but will not run when syvecs is plugged in

Im wondering if anyone else has had this issue with the TSI plug and play kit, or can point me in the right direction my hunch is there is a mistake in the basemap for the DI calibration.

Im pretty stuck at this point with no one able to help me so now reaching out on forums I have added a copy of the basemap to this post for anyone looking to cross reference their calibration with mine hopefully noticing a difference we can compare and test

(forgot to pull the logs down before we sent the ECU back to syvecs so no log data, happy to risk another DI pump for the community so when I get it back I will start it and upload the log if that helps)

any help would be greatly appreciated as im really stuck now and would ultimately like to save someone a fuel pump or 2 if they are about to plug this kit in to their car soon. if we can find the fault and report it back to to syvecs it will save alot of people a big headache

Thanks in advance
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hashman_motorsports
Posts: 2
Joined: Fri Mar 10, 2023 10:13 am

Re: Volkswagen 2.0T TSI (CAWA CAWB CBFA CCTA) SGDI-TSI PnP DI Pressure high overheating

Post by hashman_motorsports »

TLDR: fit 06J145100AD and 06J127025L on CAWA and CAWB engine codes to get the syvecs S8 plug and play kit TSI to start engine without causing the overheating of the open fuel pump that comes with CAWA and CAWB engine codes

CAWA CAWB Came with a different Fuel pump to CCTA CCZA CCZB

open pump looks like this used in the CAWA and CAWB engines pump part number: 06H127025N
OkG5MyW.png
OkG5MyW.png (116.56 KiB) Viewed 2495 times
closed pump looks like this used in the CCTA CCZA CCZB engines pump part number: 06J127025L:
GbIkseJ.png
GbIkseJ.png (156.17 KiB) Viewed 2495 times

running the basemap that comes with the plug and play kit on the CAWA CAWB engine codes with the Open Pump will cause the fuel pump to overheat and if left for long enough cause a fire

To fix this issue and allow me to start the car I replaces the fuel pump and the vacuum pump in order to get the syvecs base map to work

CCZA / CCZB Vacuum Pump Part number 06J145100AD

the difference between the vacuum pumps used in CAWB and CCZB is the mounting area for the High pressure fuel pump on the CCZB vacuum pump the mounting screws are further apart.

This solved the problem with the non starting now getting a fp trip which im working through
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