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  1. Driveline, Performance, Tuning
    Hey guys. I recently swapped a b30 into my 325 (everything necessary has been swapped) and put on a ‘performance’ b30 tune and I’m having issues getting it to run smoothly. The flash was supposed to replace the b25 values with some for the b30 and take care of my sap and rear o2 delete. When I...
    dme help ms45.1 ms45.1 tuning rich condition
  2. E46 General
    Ok, so my kid's car (2005 325ci vert) decided to melt a coil pack and explode a transistor in the dme (which consequentially took out the neighboring transistor). After thinking this would be an easy task of replacing the dme I came to find out this car has the dreaded ms45.1. SO first...
    dme fpr fuel pump relay ms45.1
  3. E46 General
    I have an 03 325i with the GM AT. The cluster was swapped from an ‘02 with less miles. I was trying to fix the FA, clear the tamper dot, don’t know wtf I did . . But the issue now is the DME. Temp gauge goes full hot when you turn ING on. Cranks fine, no start. There’s no CK ENG LT, trans is in...
    can bus crank and no start ms45.1 ncs expert winkfp
  4. Forced Induction
    I recently did a turbo install on my 2004 325ci, m54, SMG, ms45.1 and I have run into the problem of knocking or loud pinging when at idle or cold, in addition to a very rough idle. Parts installed listed below. 35mm Bov Universal aluminum intercooler and 2.5inch piping. AEM boost gauge Oil...
    engine m54 ms45.1 need help turbo
  5. Driveline, Performance, Tuning
    someone is probably capable of deleting ews on ms45.1 i can pay if you want i got no start on my e46 since ive burned the ecu on a welding job and i just want to flash another ms45.1 from the junkyard to work with it pleasee helpppp
    e46 2004 ms45 immo ms45.1 ms45.1 ews ms45.1 tuning
  6. Driveline, Performance, Tuning
    Hello everybody, MS4X developement group is proud to announce that MS45.1 now inside our scope. :) We want to open this thread for a MS45.1 related tuning exchange, because only in a larger group we will be able to understand the much complexer ECU compared to MS43. Our fellow board member...
    ms45 ms45.1 ms4x siemens zhp
  7. E46 General
    Hi all, just purchased a 2004 330i ZHP with 198k miles. No check engine light, but when I went to get my emissions test I failed due to all 5 OBD flags they check are showing not ready. I bought the car, then immediately drove 500 miles, so I figured the drive cycle would be good even if there...
    330i emissions ms45.1 readiness zhp
  8. Driveline, Performance, Tuning
    Hi all, just purchased a 2004 330i ZHP with 198k miles. No check engine light, but when I went to get my emissions test I failed due to all 5 OBD flags they check are showing not ready. I bought the car, then immediately drove 500 miles, so I figured the drive cycle would be good even if there...
    330i emissions ms45.1 obd readiness zhp
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