t6_measured

Spot the winter specialities:

Yet another set of engine's built-in tests to try. HOW-TO run engine's built-in test for EGR cooler pump IGNition ON (engine not running) VCDS > Select > Engine > Output test > IDE00879-EGR cooler pump Select "Measuring Values" Pick up e.g. the following data items for monitoring - the same...

A quick DIY test using van's built-in test using VCDS or OBDeleven diagnostics tool. Related fault code: 02256 - Quiescent Current - Upper Limit Exceeded VCDS How-to Unlock the van, open driver door (hood and all the other doors closed). Startup VCDS. (-A-) Turn ignition key to position...

A quick DIY way to test fuel lift pump's basic functionality. The test takes advantage of engine's fuel high pressure sensor (in fuel rail). Running the lift pump continuosly makes the pressure eventually "leak" through high pressure pump and can be detected by fuel pressure sensor. As a side...

So it seems - inevitable P0401. Well, visited a VW garage to be tested - the van had accumulated 30 events in ECU's memory since July 2021 (since 20 months now). Eventually managed turn on the emission light at event number 31 - thus had a priviledge to have EGR flow tested. The result -...

Here's another approach for T6 DIY enthusiasts - taking advantage of very popular Carista OBDII-reader device - combined with an Android app. Ingredients: T6 EU6 engne: CXEB,CXEC,CXFA,CXGA,CXGB,CXGC,CXHA,CXHB. Carista OBDII device (also other generic OBDII (ELM327) devices will work) Android...

Getting dark up here. Realised that I never measured High Beam Assistant "response". High Beam Assistant turning high beam back on Factory installed High Beam Assistant. OEM LED headlights, MY18 LHD T6. Drizzling morning, 40 minutes before sunrise, heading north. Pictures are 0.100 seconds...

Introduction An update campaign for T6 EU6 diesel engines took place in 2019-20. Affected engines were on van of model years MY16-MY18, including some of MY19. For M1 class (passenger carriers, VIN WV2...) the update was an official recall. For N1 class (VIN WV1....) the update was not...

4Motion Adaptation channel - MAS06098-Acoustic measure wiring logic STANDARD / INCREASED TRACTION / REDUCED NOISES T6/T6.1 Haldex clutch has an adaptation channel which presumably changes clutch clamping behaviour. The channel can be tweaked with various tools. Conditions for the measurements...

For future reference. Applicable to T6 EU6 engines. Oil pressure switch - F1. Switch pressure 2.3 to 3.0 bar Oil pressure switch for reduced oil pressure - F378 (919-040) Oil pressure regulating valve N428 (906-030) References: Workshop Manual Transporter 2016- Engines: CXFA, CXGA, CXGB...

Got curious how T6 copes with doing short journeys. And how short would be too short for successful DPF (Diesel Particulate Filter) regeneration. The graphs below are result of doing short journeys - the plotted one is number 3, thus two interrupted DPF regens before this. At this stage the...

In March 2020 finally got the long-awaited ECU (Engine Control Unit) software update. Unfortunately it took a while to get a good chance to do some measurements to try to figure out what has been changed. So finally a few weeks back dusted the VCDS and collected all kind of intriguing data. The...

Reference documents: VW Self Study Programme SSP 561 –The T6 2016, which in chapter Power transmission (p.26) for details on 4Motion control logic refers to: VW Self Study Programme 414 – 4MOTION with 4WD coupling generation IV. The document can be read and downloaded at SSP 414 Spesifics...

Keyword “loud knocking metallic noise from engine”. VW has published in September a service note which can be found with vehicle's VIN. The sound clips from my engine (150PS, EU6) with comments on 21 Oct 2017 in thread Tick over noise EDIT: audio files from the thread copied here as...