[jski73]

I have searched the forums with no success in finding a solution, so i need some help. I Have a 2011 with a 6 cylinder. Driving at highway speeds it started to shutter, the cruise control went out, and had no power. Towed it to the dealer. They diagnosed #5 Fuel Injector was stuck dumping fuel. Hauled it home and replaced all 6 injectors, 6 spark plugs, and did an oil change. Ran fine for an hour. Cranked it the next day and it started shuttering and the code was p0303 and p0267. issues on #3 now. So I swapped the plugs, 3 with 1. Still getting the 303 and 267 codes. I bought and installed new ignition coils and then switched plugs 3 with 4. Still same codes. I took everything back apart and cleaned every connector and put dielectric grease on each connector along the fuel rail and moved the injectors up a cylinder ( 3 to 1, 1 to 5, 5 to 3, etc..) Put it back together and now the codes switched to p0261, 2149, and 0301. so looks like it moved to cylinder 1 now, which points to the Fuel injector, thinking I got a bad one I bought a new one. Took it apart, again, and replaced the injector on 1.
Now it won't come out of idle, dash says reduced engine power, and the codes are P0193, P2149, and P0261.
I have ordered a Fuel rail pressure sensor in hopes that is it. All of the troubleshooting steps for these codes say, possible bad injector, coil, etc...

1)I don't want to keep throwing parts at it, so what causes a P0193 (fuel rail pressure sensor circuit high) and a P0261 (fuel injector circuit low) with P2149 (injector group "b" supply voltage circuit open) if all of the parts are new?

2)And which cylinders are in group B?



Thanks in advance

Jay

2011 Camaro 1LT V6 Convertible