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Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
Hi all, finally dropped 1700 for a big radius black 2-2 system for the breakout…..
got a FP4 tuner to go with them.
all was going well pipes on tuner loading new map then the bike auto shut off due to time and froze the mapping.
Now ecm is no rsp and engine light Quik flash. So pretty sure it’s killed my ecm! Ffs
absolutely devastated and can’t sleep….. Y ME!!!!
tried to redo it and it just freezes in pairing fo4 to bike for 10+ minutes.
Any ideas except getting it towed to the dealer…
Last edited by 23bkoutoz; Oct 25, 2025 at 07:59 AM.
I have a PV4 that lost my ECM while tuning my trike and got a short when the charging cable melted on the exhaust. Called Dyno Jet and they told me to unplug the electronic brake control module then reboot the PV4. That worked for me it may work for you FP4.
After a night of trial and error I have managed to load a map 🥳🥳🥳🥳🥳 will see how it runs.
Main issue was it seemed to lag or time out but if you just left it for half an hour it seems to sort itself out.
I just had to be on standby to turn ignition back on when it auto turned off as quick as I could to try not let the thing die 🤷🏻♂️
zero do and do nots in app . Or if this happens do this.
such as Bluetooth drop out or bike shutoff.
goddam I love this bike……!
I have exact problem with you, bike auto turnoff
now its showing ecm no rsp
what option do you choose from the fp4 to load the map again?
mine is not showing any exhaust system after the error
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V & h FP4 disaster…..
