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Message: <blockquote data-quote="leforte" data-source="post: 289965" data-attributes="member: 1943">hey ess530,be patient, the ESS tuning is fine for our weather. the ess software will learn to adapt, just give it time, it takes anywhere from 100km to a few days with variable driving style and condition for the DME to fully adapt itself, the performance will only get better over time.  LEAVE THE INJECTORS ALONE, switching back to stock injectors will cause the car to run lean and self destroy itself. the Ess tuning is perfectly tuned for the bigger injectors. a stock bmw will run about 14.5 afr which is the optimum stoic Air Fuel Ratio for a N/A car, but for the ESS tuning, its normal for it to be around  13.0 AFR.  the richer AFR at wide open throttle is a good failsafe from any chance of the engine pinging. hence the extra carbon at the tailpipe is strictly normal. on the jerkyness during full throttle, you sure its not the DSC kicking in, you got A LOT of torque at the wheels now? DSC will blip the throttle to reduce power. turn off the DSC and try again. anyway it could also be the ess tuning failsafe torque reducing setting for all automatic cars, whereby it cuts ignition prior to an up shift to preserve the gearbox. be glad as its a safety feature, this is characterized as a  slight  pause of power  around 6300-6500rpm  prior to  the upshift of gears. quite noticeable on 1-2 shifs. opps..sorry my bad, i meant PLASMA SPARK which is the cheaper alternative to the coils, but really congrats on the purchase of the plasma coil, they are a tad expensive but if it helps, its worth every penny then. can pm me the price for the nology silver, i need to replace mine soon. thanks. p/s do not do any dyno until the tuning fully adapted itself.</blockquote>

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