Thread: Knocking problems

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  1. #1 Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    So I just put on the mods that are in my sig and I'm getting shout 3-3.5 degrees of kr.(via torque app) I also am getting this code (which I don't have off the top or my head because I'm at work) that deals with the iat sensor. Short circuit? Torque is telling me that my intake air temp is a constant 140* C. Could this be giving me my problems?

    Thanks,

    Chris
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  2. #2 Re: Knocking problems 
    Moderator Russosaur's Avatar
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    IAT might be bad or one of the wires is broke.

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  3. #3 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    Would that be causing that much knock?
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  4. #4 Re: Knocking problems 
    Moderator Russosaur's Avatar
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    That I don't know, I can't see your sig because I'm on tapatalk so I don't know your mods.

    Sent from the Milky Way
    2019 F150 XL - Make it run 12's N/A
    2012 F150 STX
    - Gonna be a race truck
    02 GT "Slowkar" 180k - Top Swap, Gen V, TOG Headers, 1.9s, e85, 3.25. It's literally the slowest e85 car ever....

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  5. #5 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    Would that be causing that much knock?
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  6. #6 Re: Knocking problems 
    Killa Bee Scottydoggs's Avatar
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    siggy: 01 gtp- Here to stay-3.4, SD Headers, AL104's HIA, Intense PCM

    check the ait sensor wires, maybe they are cracked up and missing insulation like mine were. you can also clean it.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  7. #7 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    Yeah I just have it shoved In there. I'm not worried about just trying to see why the knock. Hoping that's it
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  8. #8 Re: Knocking problems 
    Killa Bee Scottydoggs's Avatar
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    unless something its hitting like the o2, or the dp to sway bar. or your motor mounts are shot to hell. that could cause KR.

    i was stock, did a u bend delete, that got me from 8* to 5*, did rockers, no tune. zero KR, i did headers today, no KR still. only blips of im rolling and mash it. i think the o2's hitting.

    got the 3.4 in the mail. then ill be tuning a bit.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  9. #9 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    That o2 could be hitting. I'll look at that more. Just thought that since the sensor is saying 140*c that it could be changing stuff
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  10. #10 Re: Knocking problems 
    Killa Bee Scottydoggs's Avatar
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    it could be. cause my intake temps are @ like 160 and higher sometimes.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  11. #11 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    Feirnheit or Celsius? Mines celsius
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  12. #12 Re: Knocking problems 
    Killa Bee Scottydoggs's Avatar
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    Fahrenheit aka degree's usa standard. lol

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  13. #13 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    Yeah torque is giving me it in Celsius.. Got 3 when doing a second gear pull till 4500 then shut it down
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  14. #14 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    how much knock is okay? if any?
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  15. #15 Re: Knocking problems 
    GrandPrix Junkie ItHurtz's Avatar
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    0 on a 3.4
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  16. #16 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    maybe i just got a bad pair of headers.. don;t think it'b be hitting anything downlow. how much clearence should i have between the 02 sensor and the tunnel? Going to try and figure out the iat problem tomorrow. Is there anywhere else i can put the senor other then jammed into where the throttle body and cone meet?
    99 gtp- Burnt and gone
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  17. #17 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    P0112 is the code
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  18. #18 Re: Knocking problems 
    I live here. Slick2500's Avatar
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    Chris go to the settings on torque then click on units and go through everything in there and change it to US stuff, it defaults to metric and Celsius.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
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  19. #19 Re: Knocking problems 
    GTP Level Member chris99gtp's Avatar
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    Saying 284* F
    99 gtp- Burnt and gone
    01 gtp- Here to stay-3.4, SD Headers, AL104's HAI, Overkill PCM, SD Hood
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  20. #20 Re: Knocking problems 
    I live here. Slick2500's Avatar
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    Check the wiring to the IAT, if its good then I would just get a new IAT sensor. I think that with intake temps that high the pcm might pull fuel, and I know lack of fuel can cause KR.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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