After all the reading I have done, I decided to stay on map 1 just to be safe, especially since California 91 octane is total garbage. Only reason I asked was because I read a post today about someone saying that they had funky AFR logs with JB1 map 1 and DP. Might have been an old post, thank you for the help.
7
BMS VW GTI JB4 info thread
- Thread starter George Smooth
- Start date
After all the reading I have done, I decided to stay on map 1 just to be safe, especially since California 91 octane is total garbage. Only reason I asked was because I read a post today about someone saying that they had funky AFR logs with JB1 map 1 and DP. Might have been an old post, thank you for the help.
railroader
Autocross Newbie
- Location
- Yuma Arizona
I ran map 2 fine on just a dp on 91. He can try it and get logs
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sprinks
Drag Racing Champion
- Location
- United States
JB4 is on my to-do list around end of year. Next question i have to ask is will port injection support come to mk7s like it did for n54 platform? Because it would be pretty spectacular to run ROW port injection setup controlled and supplemented by the jb4.
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
Yes. That's 0c.
I'm having a weird issue. Regular 91 CA crap gas, running Map 6 (clutch saver). Car "hiccups" while idling frequently. Radomly (doesn't seem tied to gas fill ups, maintenance, cold weather, etc.) when starting the car it fires up then dies. Trying to restart 4-5 times does the same thing. I removed the AFR tap, fired right up. Any suggestions?
George Smooth
Drag Race Newbie
- Location
- South Africa
A company called Fuel It who is our fueling partners has commenced work on it. They releasing their ethanol kit next week and integration into the JB4 will follow with autotune map. They are then going to work on the rail and low pressure side and have a complete solution.
George Smooth
Drag Race Newbie
- Location
- South Africa
By turning the car off to remove the AFR tap might have reset what the issue was. If possible connect the AFR again and if it fails to start remove the OBD port and see if it starts.
Thanks George! Initially, I removed the OBD port (while leaving the AFR in place) and the problem persisted. I'll reconnect the AFR and advise. It's weird though, it hadn't happened for a few weeks, then suddenly came back.
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sprinks
Drag Racing Champion
- Location
- United States
It's funny as i saw that post in the other started getting additional traction moments after i posted my previous statement. Consider me excited. Wasn't looking for big power gains, mostly just the MPI setup, but i won't complain either way.
Hi Muzza,
Not had the chance to check as the GTI has been back in to VW because it keeps breaking down. Keep loosing all electrics to the engine and engine shuts down when driving. Its been 3 weeks now and still don't have the car back! Will let you know if the blue wire connects to the red when I get it back!
Cheers,.
Dave
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so jb4 doesnt read below 0c? im currently using C and thought it might since the gauge on the app goes to about -27c. or -17c i cant remember.
George Smooth
Drag Race Newbie
- Location
- South Africa
That's the limit of the actual sensor and ECU. We reading the temp direct from the ECU via the OBD port.
tcabrino
Passed Driver's Ed
- Location
- Indiana, USA
- Car(s)
- MK7.5 Rabbit
To use obdeleven, can I just disconnect the jb4 from the obd plug or should I also do something else? Just want to read codes as I didn't find what tge code 539E is.
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George Smooth
Drag Race Newbie
- Location
- South Africa
Yes, you just disconnect and do the read. Please post here what the fault is so I can add it to the translation list. Closest hit I get is its Evap system related.