Misfire without storing codes
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Cruising
Joined: Feb 2015
Posts: 10
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Misfire without storing codes
Hey everyone. Having a technical and want to pick some brains or maybe some of you have had the same thing happen and can maybe point me in the right direction.
I have a C6 base model coupe 6 speed. Bought this corvette back in January and it’s been great with no issues at all. Surprisingly flawless. Well all of the sudden a couple of days ago my check engine light starts flashing indicating a misfire. It is an intermittent but consistent misfire. The weird thing is that it isn’t throwing any codes at all. The flash will go away and come back if I throttle or climb a hill and sometimes even if I don’t throttle. Without codes I don’t know what cylinder is misfiring or what direction to go. I went ahead and replaced all my spark plugs and plug wires. Cleaned the MAF, and looked for grinds, breaks, and contact on the wiring harness to fuel rail and coils. Reset the battery just to rule out.
The mods are long tube headers, high flow cats, SLP mufflers, cam, and tuning. All work was done by the very reputable LSXPERTS in ballground GA.
I have a C6 base model coupe 6 speed. Bought this corvette back in January and it’s been great with no issues at all. Surprisingly flawless. Well all of the sudden a couple of days ago my check engine light starts flashing indicating a misfire. It is an intermittent but consistent misfire. The weird thing is that it isn’t throwing any codes at all. The flash will go away and come back if I throttle or climb a hill and sometimes even if I don’t throttle. Without codes I don’t know what cylinder is misfiring or what direction to go. I went ahead and replaced all my spark plugs and plug wires. Cleaned the MAF, and looked for grinds, breaks, and contact on the wiring harness to fuel rail and coils. Reset the battery just to rule out.
The mods are long tube headers, high flow cats, SLP mufflers, cam, and tuning. All work was done by the very reputable LSXPERTS in ballground GA.
