Can someone explain this freeze frame data to me for 03 sierra? Displaying P0300 code (multi misfire)?

Question

Parameter Description

Results

DTC for which Freeze Frame was Stored
P0300

Fuel System 1 Status
Closed Loop

Fuel System 2 Status
Closed Loop

Calculated LOAD Value
2.35 %

Engine Coolant Temp
195.80 °F

Short Term Fuel Trim - Bank 1
0.78 %

Long Term Fuel Trim - Bank 1
-2.34 %

Short Term Fuel Trim - Bank 2
0.00 %

Long Term Fuel Trim - Bank 2
-12.50 %

Intake Manifold Absolute Pressure
11.84 inHg

Engine RPM
533.75 rpm

Vehicle Speed Sensor
0.00 mph

Air Flow Rate Mass Air Flow Sensor
0.81 lb/min

Absolute Throttle Position
7.45 %

and how can i fix?
Thanks in advance

Answer 1

Really all your going to get from the data that is helpful is engine rpm,temperature and map. p0300 is a general or generic code.You will need to pin point what is causing the pcm to throw this code.Possible causes are cracked plug,bad wire,dirty injectors,stuck closed injectors,bad gas,etc,etc,etc. Duplicating the misfire is mainly the only way to find the cause.Your perimeters are the three I listed in sentence one.