I keep getting the P0300 CEL whenever I'm driving slow on first gear. I have changed the plugs and the car is still throwing the code.

The car is acting normal and I can't see anything wrong with the car, except that after changing the plugs I can feel the car smoother. I have 15k miles on the car.

Stock injectors and stock fuel pump is on the car

Any solution?

 

Any mods?

 

Intake
Map Recirculated DP
Turbo XS test pipe and catback
GM 3 Port
UICP
Map Flywheel
Competition clutch stage 4
Intercooler

 

Check where your LTFT/STFT are.

I had also random misfire when I had unproperly tuned the car and STFT were jumping around 20%.

 

I have stock injectors, so STFT/LTFT shouldn't be a problem.

 

Many other things can throw your trims off.