02-01-2023, 09:46 PM | #1 |
Drives: 2018 camaro zl1 Join Date: Jan 2023
Location: Charleston,Zl1
Posts: 20
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My zl1 keeps loosing boost because knock sensor even after replacing it
so pretty much, i was getting a code for knock sensor and everytime i push the car to the limit the engine light comes on and i loose a lot of boost of the supercharger the code for knock sensor comes up but after the car been stopped for a few hours it goes away so i decided to replaced it but still everytime i drive using the full power of the car after few minutes it comes back again. i dont know what to do its so annoying when the power is reduced. what should i do?
p.s a performance mechanic changed it for me. |
02-01-2023, 11:46 PM | #2 |
Drives: '19 ZL1 1LE A10 ShadowGrayMetallic Join Date: Mar 2019
Location: California
Posts: 185
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If it's loose (as you wrote a couple of times), tighten it.
(A knowledgeable person will hopefully be along shortly to provide a substantive response) |
02-02-2023, 12:22 AM | #3 |
Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011
Location: Trenton, Michigan
Posts: 7,047
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Any chance you have some air in your SC cooling system?
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02-02-2023, 02:56 AM | #4 |
Drives: '18 ram 1500 Join Date: Dec 2016
Location: austin tx
Posts: 72
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what octane gas are you running? That might be typical with 91
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02-02-2023, 06:51 AM | #5 |
Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020
Location: MO
Posts: 2,023
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flashing check engine light is a misfire, you didn't really say what you got as far as the light, just the knock sensor. Too, like above, what octane are you running.
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02-02-2023, 09:12 AM | #6 | |
Having FUN in the SUN...
Drives: 2022 M6 ZL1 1LE Join Date: Jan 2022
Location: San Diego CA
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Quote:
1. Please list all performance mods 2. What is the mileage on the car? 3. How old are your spark plugs? 4. Do you run a catch can? 5. What fuel do you use? 6. What are the ambient temps when this happens? 7. What are your cooling temps when this happens? 8. Have you ever "burped" your SC cooling system? 9. Any changes made before this started happening?
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02-02-2023, 09:30 AM | #7 |
Drives: 2018 camaro zl1 Join Date: Jan 2023
Location: Charleston,Zl1
Posts: 20
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im always running on 93!
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02-02-2023, 09:34 AM | #8 | |
Drives: 2018 camaro zl1 Join Date: Jan 2023
Location: Charleston,Zl1
Posts: 20
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Quote:
2. 60300 3.brand new spark plugs changed last month 4. no 5. i always put 93 6. when this happen it's usually a little cold like 40 to 50 outside but the car temp never gets hot 8. i dont know what is that 9. no i got the car with 58k wasnt doing that until i started to really push it like going over 120mph |
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02-02-2023, 09:35 AM | #9 | |
Drives: 2018 camaro zl1 Join Date: Jan 2023
Location: Charleston,Zl1
Posts: 20
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Quote:
it comes p0325 always 93 octane |
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02-02-2023, 09:36 AM | #10 |
Drives: 2018 camaro zl1 Join Date: Jan 2023
Location: Charleston,Zl1
Posts: 20
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02-02-2023, 11:05 AM | #11 |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Wait back up please. Anyone offering advice in this thread not related to his initial problem is not reading properly.
What are the DTC codes the engine is throwing for the knock sensor. There are 2 sensors , and need the codes it’s throwing. If you replaced the knock sensor and it’s still throwing knock sensor codes it could be the wiring for the sensor, it’s right near the exhaust. Also any codes for a knock sensor put your car into the low octane table which is why you have no power. We need the codes it’s throwing to help you. Has nothing to do with air in your SC loop, that’s a completely different issue.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
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02-02-2023, 02:26 PM | #12 | |
Drives: Chevy Camaro ZL1 Join Date: Apr 2022
Location: Tennessee
Posts: 66
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Quote:
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02-02-2023, 02:31 PM | #13 |
Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020
Location: MO
Posts: 2,023
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yep I agree OP says it's p0325...I'd check those wires aren't' burned/chafed/broken
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02-02-2023, 06:14 PM | #14 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
It’s either going to be the sensor or wires. You need to unbolt the heat shield, 1 bolt then unbolt the knock sensor. You sure you replaced the correct one ?
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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Tags |
annoying, boost, help me please, knock sensor, zl1 |
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