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(#1)
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Weird 30FF boost leak fault -
11-14-2021, 03:15 PM
Hi all
I need help to solve my weird "boost leak". Symptomes: - pulsating boost - 30ff, mostly in 3rd and full throttle - spontaneously also the following errors: 2ABC, 3100 Following things i have already replaced or tested: - replaced all vacuum lines - testet vacuum canisters - testet westgate actuators, no vacuum loss. The rear westgate is working fine optically. I don't see the front westgate, but it sounds good when i test with the vacuum pistole - replaced vacuum solenoids with working ones from a friends car - replaced fmic with wagner evo 1 - check CP and other cold side hoses - Change JB4 firmware from the 32.15 to 32.16 for testing - i have no westgate rattle But unfortunately no changes. After I received the 2ABC error, I thought the MAP sensor is faulty. but then the error should always be displayed? Btw. I use the stock (2,5 psi?) sensor. The car is im stock stat until the fmic and jb4. Turbos have 60'000 km. I have installed a JB4 G5 but since i have no boost i used it in Map 4. made a small log. I hope it will help. Thank you for your help. (And sorry for my bad English  )
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(#3)
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11-19-2021, 10:27 AM
Boost leak test it. Make sure in menu 4 that setting 3 is selected also.
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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(#5)
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11-21-2021, 08:33 AM
Sorry, i understand it. You mean the tachometer. I use the App. Biut i checked the menu 4, it's already set to 3.
So now i have good news, i made a DME update and the boost are almost back  ) sometimes i have the feeling i still have a boost leak. there was also a 30ff error in 6th gear with full throttle at ca. 3000 rpm. I made a new log, are you think is still a boost leak? Thanks Ruv3000
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(#6)
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11-22-2021, 01:10 PM
Doesn't appear there is a boost leak. Make sure to turn on 6 cyl timing also.
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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(#7)
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11-22-2021, 01:12 PM
Looks pretty normal for map 0, try a log on map 5 and lets see how that looks.
For 30FF errors see this... Little to no boost? Read this thread first... - N54Tech.com - International Turbo Racing Discussion  Click on our banner to visit our website! Video of our Stage 2 LPFP upgrade installation. 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.
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