I've attached a screenshot of engine running fine at 194kpa boost. on boost 194kpa.png
You will note in this scanner screenshot the timing chart is fairly stable and peak MAP on this pull was 194kpa.
Also, note the previous screenshot I posted that shows the timing spiking erratically in the plot charts. high boost timing.png
It seems to occur around 200kpa. Could this be due to the MAP sensor only being a 2bar (200Kpa absolute) sensor? When the MAP sensor reaches its limit, does it send wacky numbers to the computer? VE airflow goes from 260g/s to 0.5g/s and since timing is derived from this, is it possible the MAP sensor is at its limit and effecting the input being fed back to the ECM?
IATs seem to hover between 70 and 85 degrees - located in QLD and runs were done with 35 degree external air temp (thereabouts).
Got the VE table pretty good using a AFR gauge (around 12.8-13.4:1 AFR when on boost underload). Definitely need to look at getting a wideband to sync it in with the scanner tool though.
the 2 bar sensor still goes past it as i have seen 16psi on mine, it dosnt do any funny things it just stays at the max value, 12.8 - 13.4 is not a good AFR for boost especially 12-13psi u need to be richer maby in the 11.5 - 12 range if u want the engine to survive, those iat with the AFR u may have knock issues worth making sure they are still on and working
we have changed from a 2 bar sensor (absolute) to a 2.8 bar sensor. Does this need to be changed in hptuners to change scaling for ecu? If so, where is this input box for this located on hp tuners?
there is no guesswork the sensor has proper data to enter for it linear and offset so it works properly, u will have to check the sensor u got part number and get the correct data for it
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