Quick question

hachicho · 12-03-2017, 02:12 PM

I have installed jb4 on my m5 and I still have the check engine light on I wonder if I have to do something on the jb4 please let me know
Car has catless downpipes and gtc meistershaft exhaust

Nikolov · 12-04-2017, 02:13 AM

I believe JB4 no longer clears the CEL, some sort of legal issue. I believe general consensus is you should do a flash tune if you want the CEL gone.

12-03-2017, 02:12 PM	#1
hachicho Captain 40 Rep 637 Posts Drives: 2018 Bmw M5 Join Date: Jun 2009 Location: Houston, Tx,<<H-TOWN>> iTrader: (0)	Quick question I have installed jb4 on my m5 and I still have the check engine light on I wonder if I have to do something on the jb4 please let me know Car has catless downpipes and gtc meistershaft exhaust
	Appreciate 0 Tweet Quote

12-04-2017, 02:13 AM	#2
Nikolov Lieutenant 239 Rep 473 Posts Drives: '19 F90 M5C, '17 911 TTS Join Date: Aug 2015 Location: Sofia, Bulgaria iTrader: (0)	I believe JB4 no longer clears the CEL, some sort of legal issue. I believe general consensus is you should do a flash tune if you want the CEL gone. __________________ Snapper Rocks Blue on Tartufo leather \| All options except Homelink and tow hitch
	Appreciate 0 Quote