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Have an idle dipping/desire to stall on light throttle application after installing bigger injectors (ID850's). Car is turbo'd but didn't do it on stock injectors. At the time we'd loaded the SBD OFT map and just did some basic fuel and timing edits at WOT on the dyno to verify the turbo install was ok.
MAF is mounted just before throttle body and BOV is recirculating. There aren't any vacuum leaks that we can find. Not sure if MAF scale will fix it but I'm sure the hardware changes would benefit from a rescale. Would have been much easier to re-scale prior to putting the injectors in but bit late for that now.
But first post quotes jamesm saying something to this effect is possible with altered fuelling components and needing to isolate DI/PI for rescaling? Else where in the thread he goes onto say:
My process is this: disable port injection. scale maf to center mass against the DI only (process separation). switch to 100% port... adjust port scaler/latency against the now-known-good MAF. recombine and fine-tune in the MAF scale.
But you can't just go 100% DI and then head out doing WOT runs to obtain logs and if you're only logging closed loop, surely you're not going to get enough data to come up with a decent scale? What have I missed here?
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