check engine light comes on intermitently code says misfire #1 cyl. New plugs and wires checked valve clearance and still same code moved injector to #4 cyl and moved new plug and wire still shows #1 cyl misfire. checked crank sensor thier ok any suggestions

 

Maybe replace the distributor cap and rotor.

 

Does the code recur as soon as the key is turned on, or maybe after the engine has warmed up and been driven XX miles?

I'd say a real scan tool is needed to be able to get a "Freeze Frame" so you can find out Exactly what is causing the code.

 

cap and rotor was replaced with tune up code recurs after driving variable distances always number one cyl

 

The only other options are the injector resistor, the wiring/connection to the fuel injector. Valve clearance. Compression.

 

,valve clearance, compression, also chk to make sure that the cam lobe is not worn down .. also believe it or not i had a egr valve once causing a 1 cyliner misfire

 

If the EGR manifold was blocked on 3 ports and only the #1 port was open, there might be too much EG at times leading to a over-lean miss. Clean the EGR manifold and ports.

good luck

 

disconnected egr valve and now no #1 misfire so it must be egr then?

 

Yes, pull the EGR manifold, clean manifold, and clean the 4 ports into the intake manifold. Don't enlarge the ports w/ a drill bit as they are different sizes to achieve correct EG flow.

good luck

 

thanks cleaned egr 3 clogged problem solved