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340i switched from map 5 to map 8 while logging -
08-07-2020, 02:13 PM
I was doing some logs since I added the EWG harness. Cars been running fine for a week, and logs looked good. While logging today tho, the car switched from map 5 to map 8 in the middle of the run. Looks like it went lean, not sure why though. Any ideas on what could’ve caused it? Running E40 mix with 91, EWG harness, *** less dp, and intake. Thanks in advance!
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08-17-2020, 10:44 AM
Last safety in the log tells you why it changed to map8, looks like the lean AFR and maxed out fuel trims.
Will need to lower E85 mix or add in our back end flash to rescale those fuel trims. Home of the JB4 the worlds most popular turbocharged tuning system! It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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