12-21-2016, 10:15 AM | #15 |
AKA "Beefcake"
Drives: 2023 ZL1 Sharkskin Join Date: Oct 2009
Location: Indy
Posts: 8,541
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I have also seen this with other cars, in the winter months running lower octane gas. They were able to resolve the issue with the check engine light running a higher octane gas. Very odd, strange, but just an FYI.
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12-21-2016, 10:32 AM | #16 |
Drives: Miss Con Ception Join Date: Aug 2016
Location: Chicagoland
Posts: 2,998
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Yeah, it isn't worth the few cents you save buying cheap fuel.
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2011 1SS/RS LS3 CGM
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12-21-2016, 11:03 AM | #17 |
El Duderino
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I got the CEL for the gas cap a few times. Couldn't figure it out, the code was something to do with the vapor sensor.
Found out it was because I was topping off the gas when I filled up. No more topping off... no more gas cap warning.
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I bowl. Drive around. The occasional acid flashback.
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12-21-2016, 11:56 AM | #18 |
Drives: 2015 SW 1SS/RS 1LE Join Date: Mar 2015
Location: Brighton, CO
Posts: 2,736
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+1
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“The Eagles and the Captain and Tennille ruled the airwaves, and we were the answer to it.” - Joey Ramone
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12-23-2016, 12:52 AM | #19 |
Bad 45th
Drives: 2012 45th Anniversay Edition SS Join Date: Apr 2014
Location: San Antonio
Posts: 548
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I was having similar issues. I replaced the gas cap several times and was just about ready to pay over $500 to get the evap canister replaced but decided to do a careful check on the vacuum lines in the engine bay first. Found a cheap hard plastic line broken on both ends on a line that goes from one side of the throttle body to the other. Replaced it with $1 of rubber hose and problem fixed. I highly recommend you check your vacuum lines.
Sent from my SAMSUNG-SM-G891A using Tapatalk
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- Carl
2012 45th Anniversary SS - LS3 Magnuson TVS 2300 Supercharger / Alky Meth Injection / Lingenfelter GT12 Cam / Kooks LT Headers, 3 inch exhaust & QTP electric cut outs / Monster LT1-S Twin Disc Clutch / MGW flat blade short throw shifter / Haltech CAI / VMax Throttle Body / DSS Stage 3 axles/ BMR Trailing Arms, Toe Rods, Suspension Bushing and 1" lowering springs / Taylor 8MM Plug Wires / Tuned by Henderson Performance Technologies / EBC dimpled and sloted rotors / G2 Painted Calipers / GM Tower Strut Brace / ZL1 Factory Rep Wheels |
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Tags |
check engine light, gas cap, smoke test |
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