JB4 n20/26 EWG map 2 misfires

F30Nati0n · 02-16-2017, 03:48 AM

I am running jb4 map 2 with downpipe and intake. 0-70 is perfect but after that I start to get misfires and a big reduction in boost. What could be the issue??

Darthur90 · 02-16-2017, 03:25 PM

Maybe you need to change your spark plugs? How many miles does the car have? when was the last time you changed the spark plugs?

mike@x-ph.com · 02-16-2017, 03:59 PM

Quote:

Originally Posted by F30Nati0n

I am running jb4 map 2 with downpipe and intake. 0-70 is perfect but after that I start to get misfires and a big reduction in boost. What could be the issue??

Could be spark plugs or fuel pump
Datalog and post it on n54tech

F30Nati0n · 02-17-2017, 07:23 PM

The car has 10,500 miles on it but the engine was replaced at 7500 after I managed to throw a rod. So 3,000 on this engine cant imagine I would need new spark plugs. Also as far as posting the logs I cant seem to get it to connect to the interface. Everytime I try to connect it with correct port number and all the correct steps followed it shows up (FailedCom#4). I then tried com 1-9 and nothing worked. what could be wrong there?

F30Nati0n · 02-24-2017, 02:29 AM

bump

Joe_E · 02-24-2017, 10:18 AM

Are you running 91 or 93? octane?

F30Nati0n · 02-27-2017, 10:18 PM

I always run 93 octane.

02-16-2017, 03:48 AM	#1
F30Nati0n Private 6 Rep 65 Posts Drives: 2016 BMW 328i M-sport Join Date: Sep 2016 Location: Tampa iTrader: (-1)	JB4 n20/26 EWG map 2 misfires I am running jb4 map 2 with downpipe and intake. 0-70 is perfect but after that I start to get misfires and a big reduction in boost. What could be the issue??
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02-16-2017, 03:25 PM	#2
Darthur90 New Member 1 Rep 5 Posts Drives: '13 328i stage 2+ Join Date: Dec 2016 Location: Romania iTrader: (0)	Maybe you need to change your spark plugs? How many miles does the car have? when was the last time you changed the spark plugs?
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02-17-2017, 07:23 PM	#4
F30Nati0n Private 6 Rep 65 Posts Drives: 2016 BMW 328i M-sport Join Date: Sep 2016 Location: Tampa iTrader: (-1)	misfires The car has 10,500 miles on it but the engine was replaced at 7500 after I managed to throw a rod. So 3,000 on this engine cant imagine I would need new spark plugs. Also as far as posting the logs I cant seem to get it to connect to the interface. Everytime I try to connect it with correct port number and all the correct steps followed it shows up (FailedCom#4). I then tried com 1-9 and nothing worked. what could be wrong there?
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02-24-2017, 02:29 AM	#5
F30Nati0n Private 6 Rep 65 Posts Drives: 2016 BMW 328i M-sport Join Date: Sep 2016 Location: Tampa iTrader: (-1)	bump
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02-24-2017, 10:18 AM	#6
Joe_E Captain 264 Rep 953 Posts Drives: FBO 328i Join Date: Aug 2014 Location: Los Angeles, CA iTrader: (0)	Are you running 91 or 93? octane? __________________ 2014 328i - FBO/KW v2/VMR v710's IG@F30_Joe
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02-27-2017, 10:18 PM	#7
F30Nati0n Private 6 Rep 65 Posts Drives: 2016 BMW 328i M-sport Join Date: Sep 2016 Location: Tampa iTrader: (-1)	I always run 93 octane.
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