When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
2019 Z06 Stock Automatic 21,000 miles
It seems that our Z06's can develop cylinder misfires for a few reasons, such as air in the supercharger coolers, clogged injectors, etc.
I'd like to get a good OBD tool that can read the individual cylinder misfires in real time and with graphic logging.
Can anyone suggest an OBD tool that will do it? I usually connect my older OBD dongle to my Windows 11 Laptop, but it doesn't offer Cyl. Misfires.
I may not have ANY misfires, but I would like to know. Our friend, Bill Dearborn, helped me remove all the air from the Supercharger cooling system, so that should be good.
These Launch and Autel are very good factory level aftermarket bidirectional scan tools...identifying which cylinder or cylinders are misfiring is easy but knowing what's causing it is a little more challenging for the DIY'er...sometimes more than just a scan tool is needed.
C5 Diag,
Thanks for those suggestions.
I think I'd probably go for the Autel, since it is "wired". I've seen that Bluetooth can be slower and even unreliable. I wonder if that might not be true anymore.
What started my interest in "misfires", was Bill Dearborn's finding that an air pocket that collected in the aft-most area of the supercharger cooling "bricks", caused an overheated intake air temperature in cylinders #7 and #8. Chevrolet said, that is what caused the misfires. He said that the misfires could not be felt, but showed up as a substantial loss of speed on the racetrack straight-aways. That is when the "vacuum purging" of our supercharger coolers was developed and fixed the problem.
So now, even though I have totally no air bubble in the plastic cooling tank, I'll always wonder if I got all the air out of the cooling bricks. The "misfire results" from those scanners would solve that question. It's sort of a pricey way to do it, but the scanner can help with anything else on the Z06 or any other car.
Thanks again, Richard
You can either invest the $500 in a good scan tool or pay for a couple hours of diagnostic time to find the misfire...identifying the cylinder or cylinders misfiring is only the first step in getting this fixed...there are many things that can cause a misfire...I have a few Bluetooth scan tools and have no issues with them connecting...also a misfire that can't be "felt" can sometimes be caused by a faulty crankshaft position sensor since it is the ECM's misfire monitor...sometimes a "crank relearn" can sometimes fix these types of misfires.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.
Best OBD for Cylinder Misfires?
