.2005 Silverado 6,0 codes po307,po332,po455,po2761 changed plugs and wires. need help .suggestions pleaSe

the PO300 code is for a random misfire in the engine, PO332 is for the knock sensor and PO756 is for the transmission not shifting or low vacuum.
I think if you fix the random misfire the rest will correct itself or in other words you need to replace the spark plugs and check the disturber cap for damage or carbon cracks and replace the rotor and you might be in business.

The 300 is a rapid misfire code. 332 is knock sensor, and 756 is a transmission shift code.

the code p0307 is a misfire code on cylinder number 7 which is the 3rd cylinder on the driver side need to check spark plug and plug wire for that cylinder as it can be anything from a sticking valve to a vacuum leak what i do to check this is remove number 5 cylinder plug and wire and install them on cylinder number 7 and put plug and wire from 7 on 5 and clear codes and drive till light comes on and see if it comes up with same code if it does you will need to check for a vacuum leak or a valve problem with cylinder 7 if it comes up with a p0305 then change the plug and wire

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PO332 means there is a problem in the Knock Sensor 2 Circuit Low Input (Bank 2). This part might need to be replaced.

P1516 Throttle Actuator Control(TAC) Module Throttle Actuator Position Performance. Look for a yellow wire inside the throttle body connector. This wire usually breaks inside. To test, grab the wire for about 5 inches then tug if it breaks then that is the problem.

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o2 sensor..bank 1

Can you tell us the fault code there?

This engine is made to run on 87 octane.Sometimes when using a higher octane can cause a check engine light or other driveability problems.If you don`t think it is your knock sensors then get some used ones at the salvage yard and try them.They are under the upper intake plenum.

Your sensors that you changed were probably good.here's a link on your code. P0332 OBD II Trouble Code

Sounds like you have several problems. The P0332 sounds like you got your knock sensor wet and needs to be replaced. When you do make sure you replace the wire harness also and that you seal around both sensors. Also remove the back near fire wall foam under the intake mani to let the water that collects evap out.

sparkplug on a diesel????? it is a cyl 7 misfire but n o sparkplugs on diesels