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535i wagon 535i wagon is offline
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Default Issues with JB4 need some help - 08-19-2020, 04:27 AM

Hey all,

I have a new to me 535i e61 wagon with 107k well maintained and pampered miles. I installed a JB4 and set it on map 1. here is my issue, before the install my wagon ran great with no issues. Installed the JB4 and now just driving normal engine will go into low power mode. When I scan for codes sometimes I get a miss fire cylinder 1 and/or intake manifold pressure. I installed oem plugs and switched 1 and 3 coils, no change and same issue pops up. If I shut the engine off and restart it the low power mode goes away but will come back after a few miles. Thanks for any advise.( I will post the code later as I do not recall it )
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535i wagon 535i wagon is offline
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Default 08-19-2020, 09:48 AM

Quote:
Originally Posted by 535i wagon
Hey all,

I have a new to me 535i e61 wagon with 107k well maintained and pampered miles. I installed a JB4 and set it on map 1. here is my issue, before the install my wagon ran great with no issues. Installed the JB4 and now just driving normal engine will go into low power mode. When I scan for codes sometimes I get a miss fire cylinder 1 and/or intake manifold pressure. I installed oem plugs and switched 1 and 3 coils, no change and same issue pops up. If I shut the engine off and restart it the low power mode goes away but will come back after a few miles. Thanks for any advise.( I will post the code later as I do not recall it )
today I have code 30FF
number 12543
no miss fire or manifold pressure (weird)
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Default 08-21-2020, 02:53 AM

I found the issue that is throwing the 30FF code. reinstalled and cleared codes. Test in progress, stand by.
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Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 08-21-2020, 05:42 AM

Logs really help as well


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

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