07-19-2020, 01:44 PM | #1 |
Drives: 2017 ZL1 Garnet Red Join Date: Feb 2015
Location: NW Wa
Posts: 354
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Check engine light flashing
Hi guys,
Anyone have there check engine light start flashing at them after hard acceleration. My '17 ZL1 did this last night after merging onto the freeway. The car didn't seem to have any issues accelerating. I got home plugged my scanner into the car. There is a code P0300 Misc Multiple Misfires. Any help would be appreciated. Thanks, Sam |
07-19-2020, 03:14 PM | #2 |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,700
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Misfire my man. Look for a cracked spark plug or bad plug wire. I’m assuming you’re running good gas...
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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07-19-2020, 05:23 PM | #3 |
Drives: 2017 ZL1 Garnet Red Join Date: Feb 2015
Location: NW Wa
Posts: 354
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Hi Josh,
I buy ethanol free gas from the local co op, along with several other guys in our car group. I haven't heard anybody else complain about the fuel, but I will ask. I will have to pull the plugs and check them. Thanks |
07-19-2020, 05:25 PM | #4 |
Drives: 19 Chevrolet Camaro 2SS 1LE Shock Join Date: Apr 2020
Location: BC, Canada
Posts: 1,947
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Flashing CEL is always a misfire, and your code confirms it.
Definitely check it out before it gets worse. You can destroy your cat very quickly otherwise.
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Current:
2019 Chevrolet Camaro 2SS 1LE M6 Shock GM Performance Intake and that's it, because driver mods before car mods Past: 2009 Mazda RX-8 GT M6 Velocity Red Mica (Sold) 2015 Chevrolet Corvette Z51 2LT M7 Velocity Yellow Tintcoat (Flood totaled) |
07-19-2020, 09:27 PM | #5 |
Drives: Zl1 1le Join Date: Apr 2018
Location: Midwest
Posts: 183
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have you made any modifications?
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07-20-2020, 01:35 PM | #6 |
Drives: 2017 ZL1 Garnet Red Join Date: Feb 2015
Location: NW Wa
Posts: 354
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Rotofab CAI
Tony Mamo Throttle body Both of these mods have been on the car for 3 yrs. I am pulling the spark plugs and going to replace. Thanks for all the help, Sam. |
07-20-2020, 01:51 PM | #7 |
Drives: 2017 Camaro ZL1 Join Date: Jan 2018
Location: Berwyn
Posts: 37
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Not saying you have the same issue I do but I had the flashing check engine light and now dealer is saying I need 4 injectors. cylinder 1-3-5-7 not fun
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07-20-2020, 05:56 PM | #8 | |
Drives: 2017 ZL1 Garnet Red Join Date: Feb 2015
Location: NW Wa
Posts: 354
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Quote:
How did your engine run, any hesitation or running rough? |
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07-21-2020, 08:05 AM | #9 |
Drives: 2017 Camaro ZL1 Join Date: Jan 2018
Location: Berwyn
Posts: 37
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07-21-2020, 09:56 AM | #10 |
Dyno Show Queen LOL
Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014
Location: Houston
Posts: 4,343
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Its a bad injector got the same thing going on now rough til warms a bit.. once warm no more codes no more misfire. i did plugs and wires 1st didn't help. seems to be worse if car sits a few days.
you probably will get a stability track light as well. I'll pull blower soon replace with plus 30's or better and lingenfelter pump..
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Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber |
07-21-2020, 12:58 PM | #11 | |
Drives: 2017 Camaro ZL1 Join Date: Jan 2018
Location: Berwyn
Posts: 37
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Quote:
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05-03-2021, 02:51 PM | #12 |
j1ss
Drives: '21 2SS 1LE Join Date: Dec 2019
Location: Florida
Posts: 384
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Did you find out what this was? ‘21 SS 1le here only P0300 at track days… I can’t get it to do it on the street
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05-03-2021, 06:09 PM | #13 |
Drives: 2017 ZL1 Join Date: Jan 2017
Location: NJ
Posts: 904
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I've had this happen a few different ways
1) Spark plug wire not fully seated 2) Connector at the coil pack with recessed pin The 2nd one was a bastard, it wouldn't happen on dyno and would only happen on street, likely due to different vibrations.
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2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)
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05-03-2021, 06:51 PM | #14 | |
j1ss
Drives: '21 2SS 1LE Join Date: Dec 2019
Location: Florida
Posts: 384
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Quote:
I would think if mine was either of those issues you described it wouldn’t go back to normal and make it all the way home at 85mph by reconnecting the battery? |
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