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  1. 02 Sensor sorted the first car, had a second come...

    02 Sensor sorted the first car, had a second come in with a bent pin in the ecu for 02 sensor, was shorted to ground to an adjacent pin it was squashed flat.

    I found to get VVE to work into boost...
  2. So tuned up no problems, intermittent snap lean...

    So tuned up no problems, intermittent snap lean from idle free rev, anybody sused out the transient with no wall wetting???
  3. After some messing around it seems the answer is...

    After some messing around it seems the answer is a simple as making the MAF codes "not reported" finally managed to do VVE into boost on LT4 Corvette having not been able to get either the last 2...
  4. I haven't had much to do with the earlier Mustang...

    I haven't had much to do with the earlier Mustang but you will need to log a lot more information, Mapped points, Throttle error, all spark and fuel TQ limits, ETC effective area, IPC error.
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    You can dial it in, the throttle effective area...

    You can dial it in, the throttle effective area is sort of theoretical.. You need to play with driver demand and the throttle area so the brake torque does not exceed the scheduled torque, this is...
  6. Had the same issue with Camaro LT1(Blownl and...

    Had the same issue with Camaro LT1(Blownl and Corvette LT4 once into boost.. I asked on another thread amd got no joy.
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    Also Interested

    Also Interested
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    This is a different car with the same mods, and...

    This is a different car with the same mods, and tune, it is less pronounced but will stall on hot start if left for 2-4 minutes on the first attempt but will start the second attempt. I'd bee keen...
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    92476 The spark has well and truly recovered...

    92476

    The spark has well and truly recovered at good rpm prior to the stalling,
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    Not variable cam or duel intake runner is my...

    Not variable cam or duel intake runner is my guess. NN is for changing VE.
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    92476 The spark has well and truly recovered...

    92476

    The spark has well and truly recovered at good rpm prior to the stalling,
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    I was able to stabilize it up nicely with changes...

    I was able to stabilize it up nicely with changes to Predicted throttle by reducing the idle torque error to 0 in neutral hot idle, that and Optimal cam posn.
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    It starts and runs for 2 seconds, you can see...

    It starts and runs for 2 seconds, you can see timing adding, +15-20 degrees, I did try adding 5 degrees with no change. There isn't a lot of emissions retard on a hot start.
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    Like NA with a massive throttle to justify the...

    Like NA with a massive throttle to justify the airflow.
  15. Waiting on an 02 sensor, not a common thing Down...

    Waiting on an 02 sensor, not a common thing Down Under
  16. Sorted FT issue, needed to remove Airflow...

    Sorted FT issue, needed to remove Airflow Correlation. Previously tuned elsewhere with a failed 02 sensor as well, didn't realize until stopped with power runs and tried to start VVE triming looked...
  17. LT4 C7 Corvette no MAF mode no STFT and throttle limit

    New to Gen 5, when I fail the MAF I loose LTFT and STFT and the throttle is limited, what else needs to be altered beyond the MAF frequency fail points.
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    Glad we are seeing the same thing from that...

    Glad we are seeing the same thing from that respect. Whats the logic behind an air leak relative to hot start only?
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    Added more but made no difference, I notice the...

    Added more but made no difference, I notice the throttle source is 16 when it stalls on hot start but switches to 9 when you touch the throttle and it runs.
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    Tune attached, I have added idle air but will try...

    Tune attached, I have added idle air but will try more. The vehicle is PD supercharged, the file is my own build for a Harrop 2650 based on the stock OS. The car has good readability and power, hot...
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    18 5.0L Hot start stall

    I have an issue with a hot start stall in an 18 car. It has a PD supercharger, if you breathe on the throttle it continues to run, I've tried all sorts but to no avail. I see the odd random Mustang...
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    I have the same issue on 2 customer cars, can fix...

    I have the same issue on 2 customer cars, can fix the optimum stability cam position but the car has a tendency to stall but is smooth. I also have a crankshaft variation code in one car that...
  23. The TCC apply ramp does not stop the pressure...

    The TCC apply ramp does not stop the pressure dropping until slip occurs, so far so good on the minimum adaptive though.
  24. Probably should have thought of it before,...

    Probably should have thought of it before, reducing the adaptive minimum to zero has helped considerably.
  25. No injector pulse hot start 2 ecus E67

    Hi,

    Does anyone know if the E67 has a thermal cut, since a new engine with a bigger capacity and considerably longer exhaust duration the car won't start hot(no injector pulse). This only occurs...
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