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Thread: CTS-V E67 ECM 255KPA limit

  1. #1
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    CTS-V E67 ECM 255KPA limit

    Hello, wondering if anybody is running over 255KPA (above 22psi of boost) with the stock computer ?
    I'm working on a 2011 model, Forged bottom end,Studded, Ethanol, Methanol, 3 fuel pumps.etc... And every time we go under WOT, when it hits about 245KPA, the boost gauge(factory) goes back to zero and the PE enrichment disables. Doesn't make any sense really. But we can't run the car like this either. Thanks in advance.

  2. #2
    Senior Tuner SultanHassanMasTuning's Avatar
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    depends on how you have the car tune, maybe you cam trick the ecu in reading less boost if your fueling is relied on MAF calibration
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  3. #3
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    fixed it, it was in the engine diagnostic MAP sensor limit.

  4. #4
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    as far as i know the e67 will limit at the 255kpa no matter what, it wont cut fuel but the VVE will stop there so if ur maf may be ok or i have scaled a 3bar MAP sensor back to 255kpa so it will read to 30psi so if VVE only u can keep fueling all the way

  5. #5
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    Yes,the map was reading between 240-250KPA. Probably too close that it was pissing off the ECM. No plans to go higher.