CEL after hard acceleration?

RxSummit16 · 10-12-2016, 03:05 PM

Coming back from the mountains today, about 3 hrs in to the drive, I was doing about 70 when I punched it up to about 80 to go around a car. The CEL blinked for less than 5 secs then went off. Reason for concern?

PolynesianPowerhouse · 10-12-2016, 04:23 PM

Misfires.

I did it on the 5th gen with lfx I owned. I was on my way to work numerous days and when it was time to "get it" I punches and one time the stability actually light camenough on as well.

First thing I tried was higher octane gas. It could be bad gas if you are running 87. So I went up to 89. That cured it for me. It happened one more time but I did the intake valve cleaner treatment on a car with over 50k, and till I traded it in. Never had it again.

When I did have the issue I had it blink and go off. One time it finally stayed on. I was a misfire in 2 and 6, I replaced both plugs but eventually still had the problem.

But whenever the cel blinks, it's multiple misfires.

I'd work on checking the gas to be the prob first.

RxSummit16 · 10-12-2016, 04:47 PM

Good to know. That makes sense. I had to stop at a place out in the middle of nowhere out near Gatlinburg...

10-12-2016, 03:05 PM	#1
RxSummit16 Drives: 2016 Summit White Camaro LT2 RS Join Date: Jun 2016 Location: NC Posts: 135	CEL after hard acceleration? Coming back from the mountains today, about 3 hrs in to the drive, I was doing about 70 when I punched it up to about 80 to go around a car. The CEL blinked for less than 5 secs then went off. Reason for concern?

10-12-2016, 04:23 PM	#2
PolynesianPowerhouse Big Samoan ina little car Drives: 2016 camaro Join Date: May 2014 Location: Tofiga Island Posts: 1,872	Misfires. I did it on the 5th gen with lfx I owned. I was on my way to work numerous days and when it was time to "get it" I punches and one time the stability actually light camenough on as well. First thing I tried was higher octane gas. It could be bad gas if you are running 87. So I went up to 89. That cured it for me. It happened one more time but I did the intake valve cleaner treatment on a car with over 50k, and till I traded it in. Never had it again. When I did have the issue I had it blink and go off. One time it finally stayed on. I was a misfire in 2 and 6, I replaced both plugs but eventually still had the problem. But whenever the cel blinks, it's multiple misfires. I'd work on checking the gas to be the prob first. __________________ Don't sit around and watch everyone else live YOUR dreams...DO SUMPT'N When I see posts asking "whats the best intake, exhaust, etc" .... the answer to that is like a grandfather telling his grandkids "if you put salt on a birds tail, it'll let you catch it" #ThinkAboutIt "Winning Tip: Don't take my (or anyone else's) word for it. GO TEST IT!" - Dennis Grant

10-12-2016, 04:47 PM	#3
RxSummit16 Drives: 2016 Summit White Camaro LT2 RS Join Date: Jun 2016 Location: NC Posts: 135	Good to know. That makes sense. I had to stop at a place out in the middle of nowhere out near Gatlinburg...

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