To knock sense or not knock sense, that is the question?

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wwhite
Posts: 317
Joined: 2021 Feb 16, 15:53
Location: Victoria, BC, Canada
Vehicle Information: 1994 Flarside, XLT, 351w E4OD
SD48b, Quarter Horse, Burn2

To knock sense or not knock sense, that is the question?

Unread post by wwhite »

Maybe its just non-sense, but I want to know.

When should a knock sensor be used?
I have a speed density 351w, that has knock disabled in hardware.
The stock 6cyl and I believe the 302 have knock sensor enabled.

My engine will hopefully be 400ish hp/tq at the crank once I'm done building.

Any reason I should or shouldn't enable knock sensor?

I'm having fun hacking the hardware, once it's enabled I could always disable it.
decipha
Posts: 5031
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'19 F-150 3.3L

Re: To knock sense or not knock sense, that is the question?

Unread post by decipha »

You habe to write custom code to get the knock sensor to work correctly.
wwhite
Posts: 317
Joined: 2021 Feb 16, 15:53
Location: Victoria, BC, Canada
Vehicle Information: 1994 Flarside, XLT, 351w E4OD
SD48b, Quarter Horse, Burn2

Re: To knock sense or not knock sense, that is the question?

Unread post by wwhite »

So, even though my bin has the KNOCK STRATEGY ENABLE LOGIC, it still needs to be customized more?

Code: Select all

STRATEGY MODULE
SPKKNOCK_LL:

Sub Routines
KNOCK_HARDWARE_PRESENT:
KNOCK_THRESHOLD_SENSE_(KTS)_LOGIC:

Switch:
KIHP 

Calibration Constants:
KNKCYL 
ECTNOK
LODNOK

Bit Flags:
B7_KIHP_9e 
B3_KNOCK_DETECTED_4f 
B6_KNOCK_STRATEGY_4f 
B7_KNOCK_OCCURRED_4f
decipha
Posts: 5031
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'19 F-150 3.3L

Re: To knock sense or not knock sense, that is the question?

Unread post by decipha »

yeah the stock code doesnt funxtion correctly
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