I was driving on the freeway and all of a sudden the cel came on. I went to advanced and they codes they gave me were PO302 cyl 2 misfire and PO304 cly 4 misfire. The thing is my plugs and wires are good and my injectors are good too. What else could be the problem? I was thinking the ignitor or the coil?

 

Also its a stock 2000 gsr

 

Coil or ICM would effect all cylinders, I would check the distributor cap and rotor. 94

 

Not much to work with... I wonder what is common between cyls 2 & 4 on a stock engine.

It is stock, right? How many miles? Any changes or service done lately?

 

Its stock 121k full tune up has already been done. Plugs wires cap rotor fuel filter etc.

 

Then I would check injectors, swap out the 1 and 3 injectors for the 2 and 4 injectors, and clear the codes and see if the same codes come up, if not I would have a close look/test the injector control leads between the injectors and the ECU/ECM, maybe just a poor connection for 2 and 3.

What is the MM&Y of the car? 94

 

Whats the MM&Y? I changed the injectors and nothing so ill check the connection. But also the cel went away

 

MM&Y = "Make, Model, and Year"