First Code @ 9500 miles Ideas please
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Joined: Jan 2016
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First Code @ 9500 miles Ideas please
2016 ZO6/07, Been absolutely perfect. Bought extended Warranty from Dennis , thanks to this forum. Modifications Hallcraft Carbon Fiber Air system, Borla X Pipe, Mamo ported Throttle body. Started car today, Very rough idle, dark smoke, check engine light stuttered off and on, then stayed on. Drove car to Auto Zone. On the way car seemed to run better. Checked engine code, PO300 Random Misfire Detected, PO50D Cold Start Rough Idle. Driving the car home took the freeway. Seemed to have no problems, ran great when accelerating hard. My guess is a temporary injector problem?? As the mods I have installed, would likely flag a warranty issue, should I just have a regular mechanic reset the code lamp and see if the problem has been eliminated? OR, take it to the dealer, I'm sure the only thing that would effect the Warranty is the Borla X pipe, but it's pretty hidden behind the cover plate. Ideas please. Thanks, been a GREAT car and more fun than my 78 Pace Car with the 8 track
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None of those things will cause a warranty issue. The Halltech intake might if it has an oiled air filter and the problem turns out to be the MAF. GM won't cover MAF failures on vehicles with oiled air filters since they have been known to cause MAF failures. The X pipe won't cause an issue unless you try to have them replace the cats you removed when you installed the X pipe.
Bill
Bill
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2016 ZO6/07, Been absolutely perfect. Bought extended Warranty from Dennis , thanks to this forum. Modifications Hallcraft Carbon Fiber Air system, Borla X Pipe, Mamo ported Throttle body. Started car today, Very rough idle, dark smoke, check engine light stuttered off and on, then stayed on. Drove car to Auto Zone. On the way car seemed to run better. Checked engine code, PO300 Random Misfire Detected, PO50D Cold Start Rough Idle. Driving the car home took the freeway. Seemed to have no problems, ran great when accelerating hard. My guess is a temporary injector problem?? As the mods I have installed, would likely flag a warranty issue, should I just have a regular mechanic reset the code lamp and see if the problem has been eliminated? OR, take it to the dealer, I'm sure the only thing that would effect the Warranty is the Borla X pipe, but it's pretty hidden behind the cover plate. Ideas please. Thanks, been a GREAT car and more fun than my 78 Pace Car with the 8 track
If you don't have the equipment to monitor data real time you wont be able to tell which of the 8 cylinders is misfiring.
If you don't want to take it to the dealer for warranty work, recommend you put about 50-100 miles on the car then have auto zone re-scan it.
At that time you should find additional codes P0301 thru P0308. These codes will correspond to the cylinder(s) that are actually misfiring.
At this point you can check/replace the spark plugs for those cylinders.
The issue could also be a bad wire, a bad coil or a bad injector for those cylinders.
With your car being so new and playing the probabilities of failure here it is doubtful you have a bad coil or bad wires.
I have seen a misfire code combined with the PO50D Cold Start Rough Idle code 3 times on C7s over the past 5 years.
All 3 times it was a clogged/bad injector. I suspect folks were running cheap fuel, but I don't know for sure.
A warranty visit to your dealer may be your quickest and least stressful path to happiness.
