Random Misfire- Toyota Camry 2001 LE P0300, P0302 & P0303

Question

Toyota Camry LE 2001, 4-Cylinder 2.2L Gas
P0300 Random Misfire- P0302 &P0303
I have replaced Coils with OEM parts, Spark Plugs, Wires, MAF sensor, fuel filter
Cleaned All Injectors
Swapped Injectors to see if the Misfire move with Injectors
I used seafoam in Oil and Gas Tank
Check Engine Ligth Intermittently Blinking
Blinking light on dashboard sometime goes off!
Could you please help!

Answer 1

HI there

I would check the timing. If the belts jumped a couple of teeth it's going to cause the misfire codes. Also, check for any intake vacuum leaks along the intake. Vacuum leaks can cause misfires as well.