Recently my 2004 3.4L Tacoma started misfiring, never threw check engine light but I could obviously feel it. Checked the codes and there was a cylinder 6 misfire code, but also doesn’t stay in 1 specific cylinder. Long story short I’ve replaced the injectors, coils, coil wires, spark plugs and ignition control module, and still have misfires. Coolant and oil levels are all the same. Engine doesn’t even have 190k on it so I’m just wondering if anyone else has had a similar issue.

 

Check your timing. Grab a timing light and see if its correct. If not, check your timing belt. When was it last changed and could it have jumped. If so, change it. If its good, check the camshaft position sensor. It might be bad. Lastly, you computer might be bad.