View Full Version : Is it common for a knock sensor to go bad? read too sensitive?
mustangtraitor
11-03-2011, 04:42 PM
I'm just curious how many people on here have actually had a bad knock sensor?
And how did you know it was bad?
popo8
11-03-2011, 05:04 PM
Call 911 had one fail while in Kentucky for the Shootout. I dont think he was expecting it... lol
chile
11-03-2011, 05:17 PM
Never had one fail on an lt1. I know on the ls motors they have a tendency to go bad if the cavitys get filled with water and on nissans they go bad. You could always check the resistance on the.
mustangtraitor
11-03-2011, 05:39 PM
what happens when they fail?
Call 911 had one fail while in Kentucky for the Shootout. I dont think he was expecting it... lol
popo8
11-03-2011, 05:41 PM
All I know is he had an SES light.... MOE scanned it for him.... Idk about any running issues....
shbox
11-04-2011, 12:32 PM
You should get a trouble code and timing advance will be restricted. Less performance.
mustangtraitor
11-04-2011, 12:52 PM
Hmmmm, I can rev my car to 5k and watch the knock count go up a bunch. but idling it never goes up
You should get a trouble code and timing advance will be restricted. Less performance.
mustangtraitor
12-03-2011, 06:25 AM
i know my car pulls mad timing from my data logs so i think something is up and my gas milage is really bad too. should i be able to rev it and watch my knock count go up? i dont have headers so i dunno why it would be super sensitive but its robbing me of power for sure, my car isnt knocking but it thinks it is. wtf
mustangtraitor
12-18-2011, 02:34 PM
im pretty sure this thing is screwing me, so i hear no knock, so why would the sensor be reporting a knock....what do i need to do to fix this?????
could it be my module
mustangtraitor
12-21-2011, 05:42 AM
so no one else has a issue with false knock being reported? or do you know? unless you datalog you wouldnt know. but if you have false knock it pulls timing and you lose power big time. I swear im about to hack up my car so i can run a regular dizzy and toss the pcm and run somethin better.i dont care for how gm did these cars at all. they didnt give two shits about cost to the consumer for maintenance or reliability. i like fuel injection, but this crap is a joke. i want to run like a 93 5.0 mustang runs not this junk. opti shit
shbox
12-22-2011, 12:06 AM
so no one else has a issue with false knock being reported? or do you know? unless you datalog you wouldnt know. but if you have false knock it pulls timing and you lose power big time. I swear im about to hack up my car so i can run a regular dizzy and toss the pcm and run somethin better.i dont care for how gm did these cars at all. they didnt give two shits about cost to the consumer for maintenance or reliability. i like fuel injection, but this crap is a joke. i want to run like a 93 5.0 mustang runs not this junk. opti shit
If that is the way you really feel, I'd sell it and get something else. You'll feel better until whatever it is you replace it with starts giving you trouble. You either give up or educate yourself and overcome.
Badhawk
12-22-2011, 09:39 PM
Replace the knock module with a LT4 module they are less sensitive to false knock and almost a must do anyway when running aftermarket roller rockers.
mustangtraitor
12-27-2011, 05:11 AM
i read something about a resistor mod to make the module less sensitive. I geuss I could tune for it too?
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