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Jerry
Jerry, Master Mechanic
Category: Dodge
Satisfied Customers: 1754
Experience:  ASE Master tech, 30 years exp. troubleshooter, driveability tech
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I have a P0305 misfire code on a 2002 dodge dakota. I can

Customer Question

I have a P0305 misfire code on a 2002 dodge dakota. I can rundown what I've done if u think u have ideas.
Plugs and wires, distributor rotor, manifold gasket all done. Fuel injectors checked, compression ok.
Was told engine computer may be issue. Ordered a vin programmed remanned computer and installed.
Ran 100 miles then check engine light back on again with same code, so I returned the computer and went back to the
Old computer. Mechanic ran sea foam through several times. It seemed to help some. Check engine light would stay on for 1-200 miles, go off for 1-200 miles and keep going on and off like that for a while. Now on all the time.
Submitted: 1 year ago.
Category: Dodge
Expert:  xsvector replied 1 year ago.

have you tried the injector?

Customer: replied 1 year ago.
Haven't tried replacing it, however they have been switched around and found that misfire stayed on cylinder 5.
Expert:  xsvector replied 1 year ago.

what is compression is ok? was it good or low?

Customer: replied 1 year ago.
Compression was good
Expert:  xsvector replied 1 year ago.

can you swap the injector with anther cylinder to see if the miss fire moves?

Customer: replied 1 year ago.
Done that. It doesn't move away from cylinder 5.
Expert:  xsvector replied 1 year ago.

if the injector is good and your positive its getting spark and the compression is good it is a internal failure sticking valve worn cam or something