#OBD2

CHEPQchepq
2025-12-24

From quick scans to advanced system checks, CHEPQ Diagnostic Tools simplify troubleshooting and improve repair accuracy.

CHEPQchepq
2025-12-16

CHEPQ brings advanced automotive diagnostics into your hands — fast scanning, stable performance, and wide vehicle compatibility.

Alex@rtnVFRmedia Suffolk UKvfrmedia@social.tchncs.de
2025-11-27

Did a further scan with #VCDS to double check all the #OBD2 #ECU #coding had taken correctly and do some real-time data monitoring, VCDS is way better for this - current draw when the ignition is turned on is as much as 14A !

New #battery holding voltage at around 12,4V with engine off, way better than old one which, barely 12V and sometimes less

Starting engine shows charge current from #alternator as much as 60A, going down to about 10A when idling (which means in future I shouldn't have to worry about #smartcharger overcharging the battery, I may even be able to monitor it this way).

Hopefully this battery lasts another 4+ years as doing all this extra coding is quite a mission compared to older cars!

#CarMaintenance #VW #GolfGTI #GolfMk7 #cars

VCDS measuring values on 19 CAN-gateway, showing various battery parameters (the engine is running at idle). The coding I previously put in for the new battery is also shown herebattery voltage monitor with USB power ports in cigarette lighter socket. It is showing about 12,4V
Alex@rtnVFRmedia Suffolk UKvfrmedia@social.tchncs.de
2025-11-26

Got 20A #SmartCharger for lead-acid (and 12V #lithium) #batteries - also has 13,6V constant supply for #coding #car #ECU (so starter #battery doesn't run down whilst getting data from #OBD2)

It works well - but confirmed my suspicions in recent weeks (alas) that battery in my #GolfGTI is goosed (installed 2021 by #VW dealer, presumably as warranty replacement with 0 record on service history, only worked this out from date code)

I'd noticed slower cranking in the cold, battery losing charge quickly and OBD2 scans showing "low voltage warning" codes from LED lighting control.

Will replace it before it bites me in the arse during #winter - #EFB unobtanium but got #AGM on order for fairly good price (will have to change coding when it arrives!)

#CarMaintenance #bladibarsket

Ring / Osram 20A battery charger and power supplyBattery charger clips connected to battery (because of the BMS for the start-stop system, you have to connect L+ to positive pole on the battery and the L- to the frame of the car, there is a convenient clip provided for this purpose)Battery charger display showing FUL (full)TopDon BT600 battery tester printout showing the battery has low CCA (cold cranking amps) - it also isn't holding much charge
plaesplaes
2025-11-22

There's apparently some drama happening regarding automotive industry forcing people to use expensive internet-enabled diagnostic devices when servicing simple mechanical parts like brakes.
youtube.com/watch?v=uv9jAQ_MiK0

But you can also do brake caliper servicing without the expensive tools...

2025-11-12

Earlier today I taught my students how to pull a VIN from a Toyota Camry’s #OBD2 port, using #MicroPython and the #CANPico board made by @kentindell.

Fun was had by all. Students were very impressed. Their next assignment will be to pick any other available data from the car and pull that.

Every day I bask in my own stuSerpico@framapiaf.org
2025-10-28

Shootout to the main #ECUTweaker developer , I just tried version 2.6.1 ( with the V3 database ) and I was able to display the Engine Control Module parameters consistently ( one driver and myself in the passenger seat monitoring the boost pressure demand, the actual boost pressure as well as turbocharger command PWM - leak after the charge air cooler throwing the car into limp home mode more and more frequently ).

github.com/cedricp/ecutweaker/

#Renault #obd2 #Android

2025-10-08

What i most miss from Citroen XM? Fuel gauge. I always knew whats up with fuel: how far i can go, how much litters i need till full tank.

After that i drove cars with dumb E-1/2-F.
I hate that.

Ok, now i have car with some electronic in it, it can display whatever engineers can imagine.

It shows DTE - distance till empty. FCUK. Give me litters! 😡

I even cannot found how to change dash to show remaining fuel.

Citroed XM dashboard cluster, left gauge is tachometer, center gauge - speedometer with odometer and trip odometer, right cluster is combination of 3 gauges: engine coolant temperature in °C, oil level in engine (works with ignition on and few seconds when engine started) and fuel tank gauge.
Fuel tank gauge marked: 0|||40|||80 in litters. Most amazing way to keep driver informed how far you can go, and how much it will need to refuel tank.
5021tips5021tips
2025-10-08

Don't feel stranded, every 'could' be using same 🤷‍♂️! Kindly don't just cram, but understand

5021.tips/ujanja/ecupins2

Put👆this rubbish on mobile📲 phone to randomly see, but laptop 💻 for better view👀

2025-09-05

scan VAG BXW engine for oxygen sensors.
So both of them doing something, and it looks like all ok. Yet there smell of unburned gasoline.
What should i look for? EVAP? Clean oxygen sensors? Check injectors?

3 graphs from OBD2 scanner, first oxygen sensor 1 voltage (between 0.1 and 0.8 v), second graph for fuel trim (-8% to +8%), third oxygen sensor 2 voltage (around 0.03v)
2025-07-05

#frågamasto #fragamastodon

Jag ska köra iväg några dagar från tisdag. Jag har en #OBD2 adapter med Bluetooth i bilen som snackar med en enkel app #CanZE för att visa tekniska detaljer, som batterhälsa m.m.

Nu upptäckte jag att navigeringsappen A Better Route Planner har fått stöd för en sån adapter, vilket vore toppen, men det måste vara BLE, inte Bluetooth. Jag skulle gärna lägga ca 500 kr på en sån, men nu kommer frågan.

Var säljer man sådant i butik över disk? Har kollat Biltema, Thansen och de flesta teknikkedjorna. Ska kolla närmsta AD-butik på måndag. Prisjakt visar ju bara postorderfirmor. Tacksam för tips.

#elbil #puffagärna

2025-06-20

@kkarhan #obd2 gibt's noch und auch entsprechende Versuche mit den Daten umzugehen:
goingelectric.de/forum/viewtop
Momentan war mir das im Vergleich zu LabLog noch zu aufwändig, aber mittelfristig ist das durchaus interessant.
#EAutoDaten

Kevin Karhan :verified:kkarhan@infosec.space
2025-06-20

@stevE was ist aus der guten alten #OBD2-Buchse geworden?

Alex@rtnVFRmedia Suffolk UKvfrmedia@social.tchncs.de
2025-06-12

Checking #VW #GolfGTI with #VCDS to measure #camshaft adaptation phase position on intake and exhaust (this can warn you if the timing chain is stretching).

Position (with a warmed engine on slower idle) is <5,0 degrees so all is OK here (the chain should be good to about 93205 miles / 150 000 km, particularly with more frequent oil changes)

The mechanics stool / creeper from #LIDL is worth getting if you see it in the middle shelf (I use it so I can put the #Thinkpad #T430 on the drivers seat to reach the #OBD2 connector and sit on the stool with the drivers door open to monitor whatever is on the screen (ofc this only works for tasks where the car is stationary, but if you want to do on the move diagnostics/datalogging you need 2 people anyway for safety)

#CarMaintenance #cars #autos

VCDS hexnet connector in OBD2 socket of Golf GTI MK7,5Checking camshaft phase position on intake and exhaust banks, these should not be >5,0 degrees (or else the timing chain may have stretched)Parkside mechanics seat and creeper from Lidl
Alex@rtnVFRmedia Suffolk UKvfrmedia@social.tchncs.de
2025-05-29

This is #VCDS in action on the T430 with a HexNET USB adapter connected to #OBD2 (a lot faster than #OBDEleven and less flaky)

#CarMaintenance #diagnostics #AutoMaintenance #AutoRepair #CarRepair #VW #GolfGTI #Audi #Seat #Skoda #Volkswagen #Canbus

2025-05-28

Kompiuterinės autodiagnostikos įrankis Vgate iCar Pro BLE 4.0 - vienas iš rimtesnių prietaisų, kuriuos galima įsigyti AliExpress platybėse.

Šis konkretus modelis palaiko abi - ir Android, ir iOS - platformas, yra nedidelis (net mažesnis už OBDEleven) bei skelbiasi palaikąs visus OBD-2 protokolus :obd2:

Nors sparta ir negali prilygti ScanTool OBDLink, to ir nereikėtų tikėtis iš keletą kartų pigesnio prietaiso - šiuo metu Vgate kainuoja apie 20 JAV dolerių. Vis dėlto, už dažną bevardį įrankį, Vgate bus spartesnis, todėl nuostatą Faster communication programėlėje Torque galima drąsiai įjungti :blobcatthumbsup:

#diagnostika #autodiagnostika #vgate #obd2

Autodiagnostikos įrankis Vgate iCar Pro BLE 4.0 prijungtas prie simuliatoriaus
Libre Diagnosticlibre_diagnostic
2025-05-02

🚀 Two new reports are out now!

We just published our latest findings on technical feasibility and diagnostic standards.

Dive into the details here: librediagnostic.com/documentat

announcement
2025-04-12

My first WiFi based OBD-2 car diagnostic tool - WiCAN PRO. It is based on ESP32-S3 platform and runs open source firmware.

As usual, testing on :obd2: simulator first :blobcatnerd:

#automotive #diagnostics #obd2 #esp32 #esp32s3

MeatPi Electronics auto diagnostic tool WiCAN PRO: device with white shell and black OBD-2 plugMeatPi Electronics auto diagnostic tool WiCAN PRO running plugged into OBD-2 simulator, with blue light on left bottom corner shiningOBDFusion app detected WiCAN Pro as Generic device, running as ELM327 v2.3 with ISO 9141-2 (5 baud init, 10.4 Kbaud) protocol at 2.3 PIDs/second refresh rateCar OBD-2 data shown on dashboard: Speed at around 20 km/h, Engine Temp at 60°, RPM at 2176, MAF at 17.28 g/s, Fuel rate at 5.75 l/hr, Bettery at 11.4 V
2025-04-11

I recently discovered that diagnostic plugs in cars were more or less standard (OBD2) and that you could buy a plug reader for like 30 bucks. I also discovered that some OBD2 prometheus exporters exist.

So now basically my new project is to have a server in my car, like a RPi. It would srcap the OBD2 data locally and backfill it into my home prometheus database whenever the car gets into my home wifi range.

#tinkering #obd2 #prometheus #metrics #car

2025-04-08
First can bus message sent :cacospin:

#obd2 #reverseengineering

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