OBD 2 App that works with mk 4?

wmarvin417

Member
Joined
Oct 2, 2023
Location
Texas
TDI
2004 Jetta Wagon BEW
Hey y'all. I am looking to make a live data setup for my 04 Jetta. I will probably be using a Bluetooth android tablet with a Bluetooth OBD2 adapter. However, if there is a significantly better app for IOS i could do that as well. The general answer seems to be the Tourqe Pro app but I want to get y'alls input specifically for our cars. I want to make sure I'll the most amount of data I can. Especially decently accurate boost.

Basically, what app works best with the mk4s? Thanks!
 

shoebear

Veteran Member
Joined
Aug 1, 2002
Location
Colorado Springs, CO
TDI
1998 Jetta, 2003 Jetta Wagon, 2005 New Beetle, 2013 Sportwagen
I'm not an iPhone guy, so I probably won't be much help. When looking for such an app for Linux, I remember seeing an open source VAG reader that would work with Linux, Android, and iOS. I think you would have to compile the source code yourself. If that's helpful, look for it, and you'll probably find it. If you are looking for more of a plug and play solution for iOS, I can't help.
 

wmarvin417

Member
Joined
Oct 2, 2023
Location
Texas
TDI
2004 Jetta Wagon BEW
Sorry if that was confusing- I’m looking for a plug and play Android system but I can make an iOS system work if it is substantially better
 

gforce1108

Top Post Dawg
Joined
Aug 2, 2006
Location
Newburgh, NY
TDI
04 Jetta GLS BEW, 14 Audi A7 V6 TDI, 13 Porsche Cayenne V6 TDI
I find OBDii on these way too slow to use for boost. I have a scangauge 2 installed to monitor a bunch of parameters, but boost is useless. Can't beat an actual analog gauge.
 

shoebear

Veteran Member
Joined
Aug 1, 2002
Location
Colorado Springs, CO
TDI
1998 Jetta, 2003 Jetta Wagon, 2005 New Beetle, 2013 Sportwagen
I have one of these in my F-350 Powerstoke and like it a lot. If only I could figure out a good place to mount it in my Jetta.

 

wmarvin417

Member
Joined
Oct 2, 2023
Location
Texas
TDI
2004 Jetta Wagon BEW
I find OBDii on these way too slow to use for boost. I have a scangauge 2 installed to monitor a bunch of parameters, but boost is useless. Can't beat an actual analog gauge.
Thats what I was worried about. I think I'll go with Tourqe Pro and get an analog boost gauge. Thanks all for the help!
 

Nuje

Top Post Dawg
Joined
Feb 11, 2005
Location
Island near Vancouver
TDI
2015 Sportwagen; Golf GLS 2002 (swap from 2L gas); 2016 A3 e-tron
A cheap (<$50) heads-up display (HUD) that plugs into the OBD port and tells you what's what. Bounces an image off clear plastic see-through "screen".
Here's the one in the image above; NLA, but there are numerous other options out there.
 

shoebear

Veteran Member
Joined
Aug 1, 2002
Location
Colorado Springs, CO
TDI
1998 Jetta, 2003 Jetta Wagon, 2005 New Beetle, 2013 Sportwagen
A cheap (<$50) heads-up display (HUD) that plugs into the OBD port and tells you what's what. Bounces an image off clear plastic see-through "screen".
Here's the one in the image above; NLA, but there are numerous other options out there.
Ordered this one. Should be here tomorrow. It's advertised as a HUD, but it's a direct display (which I prefer) - it doesn't reflect off the windshield.

Now the Chinese Communist Party will be able to track my every move! :eek::LOL::ROFLMAO:
 
Last edited:

P2B

Top Post Dawg
Joined
Jan 11, 2006
Location
Toronto & Muskoka, Canada
TDI
2002 Jetta, 2003 Jetta, 2003 Jetta Wagon

shoebear

Veteran Member
Joined
Aug 1, 2002
Location
Colorado Springs, CO
TDI
1998 Jetta, 2003 Jetta Wagon, 2005 New Beetle, 2013 Sportwagen
Did you read the description before ordering?
  • Incompatible car types: hybrid electric vehicle, diesel car, pickup truck, RV, computer modified car
I didn't see that, but I think that is CYA; basic OBD is pretty standard. But if it doesn't work, Amazon has a good return policy.
 

shoebear

Veteran Member
Joined
Aug 1, 2002
Location
Colorado Springs, CO
TDI
1998 Jetta, 2003 Jetta Wagon, 2005 New Beetle, 2013 Sportwagen
How did you like this HUD?
Display was too small for me to read - but that's just me, I have vision just barely good enough to pass the driver exam. Also, I live at 6300', and the boost gauge assumes sea level instead of sensing ambient pressure. So it reads boost pressure - 3 psi. No thanks.

Want it? Yours for cost of shipping.
 

ssarg95

Member
Joined
Aug 27, 2021
Location
St. Louis
TDI
2015 Jetta SE
Display was too small for me to read - but that's just me, I have vision just barely good enough to pass the driver exam. Also, I live at 6300', and the boost gauge assumes sea level instead of sensing ambient pressure. So it reads boost pressure - 3 psi. No thanks.

Want it? Yours for cost of shipping.
Does it have the options for displaying anything related to Regen or DPF pressures? Mainly what i am looking to read. I bought a cheap plug in last night that bluetooths to a phone app and it has those readings.
 

shoebear

Veteran Member
Joined
Aug 1, 2002
Location
Colorado Springs, CO
TDI
1998 Jetta, 2003 Jetta Wagon, 2005 New Beetle, 2013 Sportwagen
Does it have the options for displaying anything related to Regen or DPF pressures? Mainly what i am looking to read. I bought a cheap plug in last night that bluetooths to a phone app and it has those readings.
It has been a while since I played with it; so my memory is a bit fuzzy. Also, I don't own a vehicle with a DPF. I think I remember you can display any value the OBD2 provides - but I can't guarantee it. Here is (from the Amazon ad) a graphic showing all the different icons it has. I think the "PID" icon on the lower left is for an OBD2 value which has no specific icon.
 
Top