LT4 Knock Module

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Apr 6, 2013 | 06:03 PM

jrwilliams95z28

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From: Mississauga Ontario Canada

LT4 Knock Module

Hi does anyone have one for sale or know of a dealer still selling them?
I cant seem to find one.
Are any later knock modules compatible with obd1 PCM's?
I really want to eliminate the false knock im getting at 4400rpm.

Apr 6, 2013 | 07:47 PM

F0x Slaughter

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You don't have headers or really anything that will cause false knock.
How do you know you are getting knock? Datalogging?
You can de-sensitize the stock module with tuning.

Apr 7, 2013 | 01:08 AM

rich5368

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From: Cheyenne, WY

^^ what he said. My tuner desensitized my stock sensor so I didn't need the LT4. Works like a champ.

Apr 7, 2013 | 02:38 AM

pboxfun

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From: Southern Maryland

Heres a few sites I found searching google.

http://www.ws6project.com/user_stor/...oducts_id=1284

ACDelco 216-67 Control Module Kit : Amazon.com : Automotive

http://www.jcwhitney.com/ac-delco-oe...=d50282y1996j1

http://www.autopartswarehouse.com/sk...cid=productads

http://www.ebay.com/itm/ACDELCO-OE-SERVICE-216-67-Ignition-Module-Control-Unit-/190802048501?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c6cb035f5&vxp=mtr
http://www.ebay.com/itm/ACDELCO-OE-SERVICE-216-67-Ignition-Module-Control-Unit-/140939104599?pt=Motors_Car_Truck_Parts_Accessories&hash=item20d0a01157&vxp=mtr

Apr 7, 2013 | 06:02 PM

jrwilliams95z28

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From: Mississauga Ontario Canada

Thanks! I know its false knock because its consistently at the same RPM and it does'nt build up any higher. Also I desensitized the knock sensor but it still picks it up a bit its just annoying really. The timing is set pretty tame at WOT,im around 30* in the 4000-4500rpm range and 33-34 in the 5000+ area and I run 94 octane gas always.

Apr 7, 2013 | 06:23 PM

F0x Slaughter

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Turn off the Burst Knock.

Apr 7, 2013 | 07:04 PM

jrwilliams95z28

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From: Mississauga Ontario Canada

burst knock table has been zeroed. max knock retard was set to 5*, I doubled the restore rate and halfed the removal rate. still knocks a bit at 4400ish

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Apr 7, 2013 | 09:21 PM

jrwilliams95z28

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From: Mississauga Ontario Canada

Oh really? I haven't touched those tables because of a lack knowledge about what those numbers mean, but that's a good idea! So how should I go about it just 0 all the low octane tables?? I always run 94 octane there's lots of Petro Canada stations around southern Ontario. Thanks for the help!

Apr 7, 2013 | 09:31 PM

#10

F0x Slaughter

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Yes, the Low Octane tables are for if the PCM picks up knock multiple times it then assumes its bad gas so it reverts to the Low Octane tables.

As I said do not run low octane if you do zero these tables as it will have nothing to revert to and ping to death.

Apr 8, 2013 | 08:55 AM

#11

jrwilliams95z28

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From: Mississauga Ontario Canada

Yes I understand the risks, as I said the car since I've owned it (4 years) has never seen gas less than ultra 94 octane from Petro Canada. Since I've tuned it I've only been more diligent in making sure I put 94 in.

So all low octance tables should be set to 0?

Apr 8, 2013 | 04:16 PM

#12

F0x Slaughter

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Correct there is no need for the low octane tables if you only run 91+ gas.

Apr 8, 2013 | 05:43 PM

#13

jrwilliams95z28

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From: Mississauga Ontario Canada

awesome thanks I appreciate the help!

Apr 8, 2013 | 06:51 PM

#14

F0x Slaughter

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Let me know if that clears up your false knock.

I talked to Solomon when I was chasing my false knock and figured it out, I am trying to remember what I did. I know that was one of the things.

Apr 8, 2013 | 07:03 PM

#15

moehorsepower

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From: Texas

why do you say the false knock is annoying? are you constantly data logging all the time you are driving? So you are saying if you do not see it on the data logger then its ok, or is there some actual pinging going on..

Apr 12, 2013 | 02:31 PM

#16

boomer50

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From: Freelton, Ontario, Canada

LT 4 Knock Module

I got mine from Summit, site says unavailable. If you call tech line they should know if it's still available.

http://www.summitracing.com/parts/ACF-16214681/

http://www.summitracing.com/customerservice

Or, google this ACDelco Knock Sensor Modules 16214681