Detonation code

[Klimbing Kitty]

2020 patriot with a set of Slp twins in it. I keep getting maximum detonation code. Is anyone else having this problem. It is usually when I back of throttle in a long pull. Not enough fuel on decel? Bad set sensor? Any input appreciated. Will call Slp tomorrow and just make sure map sent to me is for right elevation

 

[revrider07]

Get ready to put a new top end on

 

[joshkoltes]

What is the condition of your gas? Fresh 91 non eth? From a highly used station?

 

[MTN Powderhound]

Make sure the pipes arent rubbing on something.

 

[Klimbing Kitty]

What is the condition of your gas? Fresh 91 non eth? From a highly used station?

94 no ethanol with a litre of vp111 also tried 91 non ethanol. Even dets when if it is put into ethanol mode

 

[joshkoltes]

You might have too much octane, isn't it tuned for 91. Higher octane is harder to ignite. Like your saying it dets on decel. Might not be igniting fuel loaded cyls on the slower strokes and causing an odd rhythm? Did you drain all the 94 + 110 before the 91 was tried?
I'm just guessing
Like he said make sure your not rubbing, check your motor mounts, when you load the engine they don't rub

 

[Cracker]

are

2020 patriot with a set of Slp twins in it. I keep getting maximum detonation code. Is anyone else having this problem. It is usually when I back of throttle in a long pull. Not enough fuel on decel? Bad set sensor? Any input appreciated. Will call Slp tomorrow and just make sure map sent to me is for right elevation

Are you running stock head?

 

[Klimbing Kitty]

are

Are you running stock head?

Yes

 

[Klimbing Kitty]

Make sure the pipes arent rubbing on something.

Are you thinking that if the pipes are rubbing the harmonics are setting it off?

 

[Powerstroked162]

Tuning.

 

[Scott]

Are you thinking that if the pipes are rubbing the harmonics are setting it off?

That can definitely happen.
Discovered that with my big bore 910 in my 2013 chassis.

Replaced mounts and trimmed a big bur off the bulkhead under the pipe. No more DET issues.

 

[MTN Powderhound]

Are you thinking that if the pipes are rubbing the harmonics are setting it off?

Yes. Heard of an axys had a pipe rubbing on the over structure and it was setting off the DET.