2015 z28 misfire

[Z28000]

I have misfire with flashing engine light when I plug in scanner no codes came up , car feels like it’s lacking power bad
I don’t really lied dropping this car with mechanics :////
Any help advice where I should start wILL be appreciated
Car has 24K miles , cam and heads been done with msd intake and katech TB

[tartagliazl1]

use your scanner and look up the stored codes to see what the code was when it was flashing. could be just a bad fuel injector going out or a coil pack.

[Z28000]

Will do thank you

[70T/A400]

Try to idenify the cylinder. Then get a compression test performed.
Let us know how you make out.

[void_kp]

all great advices, but why don't you start from the spark plugs?
how many miles and years do they have? have you tried removing them and check them?

sometimes the simplest answer is the right one

[Z28000]

6K on wires and plugs , coil pack look stock

[Z28000]

I will check soon and post what I found

[IdahoRob]

You can purchase a cheap inferred heat gun at harbor freight and if you have headers (assuming) start the engine and hit the 8 header pipes coming out of the heads. This may show you which cylinder is the issue, then work from there. Plug wire, spark plug, coil and injector. You can test the coil by swapping to another cylinder and see if the problem stays or moves with the coil.

[JRowe500]

I have had those issues but my car always gave a code on what cylinder was missing firing. One turned out to be the plug wire was not fully one. So check that out first.

[Z28000]

Update

Broken rocker bolt , couple damaged valves , pushrod made grove in valve cover

Just got car back last week all new stage 2 cam s lifters
Added catch can and some nice valve cover from BTR
WHP 552
She rips
Yestrday I broke driver side axle in my driveway thank god

[IdahoRob]

Originally Posted by Z28000

Update

Broken rocker bolt , couple damaged valves , pushrod made grove in valve cover

Just got car back last week all new stage 2 cam s lifters
Added catch can and some nice valve cover from BTR
WHP 552
She rips
Yestrday I broke driver side axle in my driveway thank god

Sucks that a rocker bolt broke, but good catch before too much damage. Congrats on the mods, extra 100hp has to be a blast. I have heads, headers, cam, etc sitting in the garage, just can't decide if I'm modding the Z.

[Z28000]

Originally Posted by IdahoRob

Sucks that a rocker bolt broke, but good catch before too much damage. Congrats on the mods, extra 100hp has to be a blast. I have heads, headers, cam, etc sitting in the garage, just can't decide if I'm modding the Z.

Thank you , yes soo it already had stage 2 cam w 12k miles when I bought car , made 523 WHP , we’re supposed to install or shop was supposed to install stage 3 cam but by mistake they installed a different stage 2 …. Great shop he told me right away about it and that he would swap it out at no cost. I was just anxious to get the car back and now it runs like it never rain before I mean it’s a beast but unfortunately, I just broke an axle in my driveway

[Z28000]

Mod it you will not regret