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Turbo Swap S50 won't Rev Over 5k in First

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    Turbo Swap S50 won't Rev Over 5k in First

    So I am breaking my engine in and monitoring everything, but when I go to rev beyond 5k it stops just like a limiter. Contacted Bret at Technica he said there is no limiter but he has been very nice and even emailed me on his weekend. I Reran a VSS wire checked my current vss wire on my swap no issues. No issues before swapping.

    What should I be looking for? It will rev beyond 5k in 3rd and fourth no problem but 1-2 no dice. Fuel pump is fine and new uprated for 400hp no problem, AFR's are great at high rpm in 3rd -4th like 10 at wide open throttle. Only code that comes up is 1281. Any help is appreciated. I am really at a loss because I was just able to take it out and rev it to 6800 in 3rd and 6500 in fourth no issues not lean no fueling issues nothing.




    https://youtu.be/B6Pa8zKI3z8
    https://youtu.be/V6URWXQP2OY
    Last edited by BMW_TUNER; 08-22-2016, 11:17 AM.
    1989 332IS -S-Fiddy Four-Some weight removed.
    5 lug E36 M3 Brakes Coilovers and LTW's and No ABS.

    #2
    Problem solved. Bret sent me a new base tune and all is good. Thanks Bret at Technica.
    1989 332IS -S-Fiddy Four-Some weight removed.
    5 lug E36 M3 Brakes Coilovers and LTW's and No ABS.

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