Low rpm stumbling help

MR4 · Jun 26, 2024

New owner of a 2016 1299S (stock air filter/exhaust) and have severe low rpm stumbling until approx. 3.5-4k. So far I have removed the charcoal canister, exhaust servo+cable and installed the Healtech ESE, however the lugging has not gone away. Is there is a recommended DIY workaround? I see there are tuner options like Rapidbike, Bren Tuning and Woolich, but unsure if that is overkill until I upgrade the intake/exhaust. Thanks

SirJAG · Jun 27, 2024

Stock fueling blows man. ESP at low rpm. All my like issues went away with a flash tune. I used SLR personally.

airjawed · Jun 27, 2024

Your sensors ok? MAP sensor? Something might be creating fueling issues

MR4 · Jun 28, 2024

airjawed said:
Your sensors ok? MAP sensor? Something might be creating fueling issues

Hi @airjawed I have not checked sensors and will have to research how to check them. Appreciate the tip. I do not have any warning lights on the dash

airjawed · Jun 28, 2024

MR4 said:
Hi @airjawed I have not checked sensors and will have to research how to check them. Appreciate the tip. I do not have any warning lights on the dash

It is common to have a bad MAP sensor without any warning lights on the dash.

Low rpm stumbling help

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