Problems with my 2015 camaro 1le

[Chief1402]

Ok so i have a 15 camaro ss 1le. Car has 28k miles on it right now. Drove perfect, did a set of kooks long tube headers, tuned it, it drove fine for about a week then started having issues when i left my house on cold start it acts as if im dumping clutch even though im not, i shift into 2nd and it drive perfectly fine, i can even droo back into 1st and problem is no longer there. It has only done a handful of times. Few days later it pops a code for 02 sensor malfunction... A few days later it clears itsself, still does the off and on cold start issue.

NOW... the cold start issue hasnt happened in about a week, which it has only done it a handful of times since the tune. Still no 02 sensor code, car drives normal.. then I go to town in the car today and head back home, get full tank of gas, then I head home, on way home it starts running really rough and all the stuff on gauge cluster lights up, stabilitrak issues on the digiral readout.. cel flashing. I continue driving home and the stabilitrak issues and lights go off, then come back on, cel continues flashing. Pull into driveway and car sounds like its got a giant cam in it, check codes and it is throwing b2aaa and p0300. B2aaa doesnt pop anything up when u search, p0300 is random misfire..
I ask my friends who work at a shop what to do and they say unhook battery ground for 10-20mins and hook back up and try.. i do that and when i start it does same thing again, now it pops up open driver window and shut, so i do that and it doesnt go away.. now i turn car off and shut the door and the window doesnt roll itsself up.

UPDATE: cylinders 5 and 7 are dead, theyre receiving spark. 6 and 8 are showing activity on the computer but not heating up as much as 1-4.. windows are fixed just had to recalibrate
2nd UPDATE: siphoned out all gas, refilled with pure gas. Installed new spark plug wires, car sounds a little better but still not right. Stepdad drove it down the road and now THE CAR WILL NOT GO, WILL NOT REV

3rd UPDATE: The gas station i stopped to get gas at put diesel fuel in their tanks by mistake! So the car has diesel in it. I have to have car towed to chevy for repairs and gas company pay for it.

4th UPDATE:I had the car towed to chevy monday, they billed mapco, called methe next day and said they went to start it and its still missing on cylinder #5... tested compression, its got 0 compression.. they believe its a bent valve and say i have to pay out of pocket to fix it... $1600 for parts+labor+machining for 1 head, 700 extra for the other head which they say they believe is probably slightly bent as well because it normally happens in pairs... so im gonna tow the car home and buy ported heads, maybe do a cam and a underdrive pulley while im at it...

[GONIF]

Check for loose connection to upstream O2 sensors. Check for cracked spark plug and or loose coil wire or plug wire . The window is easy , your DIC will tell you how to reset it . Check your battery cable and see if it good and tight .

[chef-beavis]

The window is normal after a battery unhook. If it is surging, google "camaro5 + strong MAF".

[frankwjr]

who tuned it using what?

[RankSS]

Charge your battery fully. This should cure the rough running. These cars need good battery voltage or all kinds of demons will surface.
Read the manual for the window relearn procedure. You have to hold the button for a few seconds after it is all the way down and then again after all the way up. They must be relearned after a battery disconnect.

[Chief1402]

A guy named clyde carlson with hptuners. He is pretty reputable in the area.

[Chief1402]

Im wondering about the gas possibly being bad because I spoke to the gas station i got it from today, as well as the parts store right across the street and apparently a few people in the area have been having similar issue and stopped there to get gas.

[SMN2011Z28]

+1 for checking the battery. When my 2014 battery was going all sorts of things started happening, including one day where all the dash lights lit up and it ran like Frankenstein. replaced battery. Not one issue since.

[Chief1402]

UPDATE: cylinders 5 and 7 are dead, showing spark though. 6 and 8 show activity on computer but dont heat up as much as 1-4

[Stephen12ZL1]

it is the black firewall connection that is loose more than likely...check it above the driver's side valve cover. It happened to my Z/28 and caused issues like yours.

[Chief1402]

Originally Posted by Stephen12ZL1

it is the black firewall connection that is loose more than likely...check it above the driver's side valve cover. It happened to my Z/28 and caused issues like yours.

Right next to the brake booster? Pretty big plug wires wrapped in silver material? Its not loose

[wakespeak]

The plug wires are very brittle at either end. I had to replace mine after changing my plugs once are reconnecting them. The clamps inside the boots had snapped off.

[sneakypete]

If its not your plug wires, replace your plugs. I had the same thing happen a few month back. I had a small hair line crack in a plug.

[Chief1402]

Originally Posted by wakespeak

The plug wires are very brittle at either end. I had to replace mine after changing my plugs once are reconnecting them. The clamps inside the boots had snapped off.

We bought new ngk iridium plugs yesterday and it changed nothing, ill order new wires today. I also see where fuel filter is 30k mile maintenance.. so i ordered that too