ecu malfuntion

old biker · 10-29-2023, 07:33 AM

hi folks, i have a problem with my hawk dlx .the decel fuel cutoff is not working and it idles fast for a time after stoping the bike. this started happening after one long full throttle run. can anyone suggest where to look.i would like to know if the problem is in the ecu or a separate switch in the throttle body ?

old biker · 10-29-2023, 07:45 AM

forgot to add that no code is showing on the display.

Do©Hawk · 10-29-2023, 08:00 AM

Is the cable sticking?

old biker · 10-29-2023, 12:45 PM

no, its the electronics.

Thumper · 10-29-2023, 03:30 PM

Oh boy. EFI is great until it isn't. 1 out of 100, 1000. I just don't want to be the one

Carburetor. A carburetor can be cleaned, rejet, adjusted, replaced for under $50

Just sayin'

Boatguy · 10-31-2023, 02:26 AM

Did you try the basics like completely removing the battery lead from the terminal overnight? Did you ensure the TPS is working properly?

Before the computer, I'd suspect the TPS and the connections from the TPS to the ECU. Especially since the problem happened after a lot of WOT.

Can you observe the TPS rotating properly through the whole range of motion up and then back down as the throttle opens and closes?

10-29-2023, 07:33 AM	#1
old biker Join Date: May 2021 Location: new hampshire Posts: 16	ecu malfuntion hi folks, i have a problem with my hawk dlx .the decel fuel cutoff is not working and it idles fast for a time after stoping the bike. this started happening after one long full throttle run. can anyone suggest where to look.i would like to know if the problem is in the ecu or a separate switch in the throttle body ?
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10-29-2023, 07:45 AM	#2
old biker Join Date: May 2021 Location: new hampshire Posts: 16	ecu malfuntion forgot to add that no code is showing on the display.
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10-29-2023, 08:00 AM	#3
Do©Hawk Join Date: Oct 2023 Location: Western PA Posts: 192	Is the cable sticking? __________________ 2022 Hawk DLX EFI * 17T Front / 47T Rear / upgraded chain * Kenda K-760 front + rear * Banjo brake light switch * LED headlight + front turn signals * Debadged (I don't like to brag about the superior strength!) * Top speed, GPS verified, as equipped: 68 mph (so far)
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10-29-2023, 12:45 PM	#4
old biker Join Date: May 2021 Location: new hampshire Posts: 16	ecu malfuntion no, its the electronics.
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10-29-2023, 03:30 PM	#5
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,294	Oh boy. EFI is great until it isn't. 1 out of 100, 1000. I just don't want to be the one Carburetor. A carburetor can be cleaned, rejet, adjusted, replaced for under $50 Just sayin' __________________ -2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it
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10-31-2023, 02:26 AM	#6
Boatguy Join Date: Feb 2021 Location: Northeast Posts: 929	Did you try the basics like completely removing the battery lead from the terminal overnight? Did you ensure the TPS is working properly? Before the computer, I'd suspect the TPS and the connections from the TPS to the ECU. Especially since the problem happened after a lot of WOT. Can you observe the TPS rotating properly through the whole range of motion up and then back down as the throttle opens and closes? __________________ 2020 Lifan x-pect
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