Misfiring!

[MONSOUN MOTORS]

Hey guys and gals I will keep this as short as possible. A few days ago my SHO had a crank no start condition and codes pulled showed that the camshaft position sensor was the culprit. So I went ahead and purchased a new cps, cam seal, valve cover gaskets, valve cover bolt grommets, motorcraft spark plugs, and accel super stock wires. I got the car in on my lift this morning and got all the work done and the car starts but has an ungodly misfire. I double checked firing order, dis mounting bolts, plenum bolts and I swapped in a known good coil pack to see if that would change anything and it didn't. I will have to check everything again Monday after work but any input would be appreciated. Thanks.

 

[Ishodu]

By any chance your not using a chiltons manual are you? They have the plug wires order wrong. Do a search and you should find a few pics of the correct order.

 

[whiteguy3]

Wrong on the plug wire order.

 

[MONSOUN MOTORS]

By any chance your not using a chiltons manual are you? They have the plug wires order wrong. Do a search and you should find a few pics of the correct order.

I used the sticky as reference for the firing order so I am almost certain I have it right but I will have to triple check that Monday. I've read bad things about the accel wires and thought they maybe causing my misfire. Was planning to swap back in the old wires just to be sure.

 

[whiteguy3]

Possible it's the Accel wires but highly unlikely. Wrong firing order, almost positive.

 

[93rev2sev]

Turn out the lights. If it's the wires, you'll see it.

 

[MONSOUN MOTORS]

It turns out that " my known good " coil pack was bad. I ordered a new one and just put it in and the car runs good now, but I am getting an intermittent check engine light. I hooked up my Modis to it and I got two codes, a 116 and a 157. I replaced the coolant temp sensor because the connector end was loose and I tried cleaning the MAF sensor but i am still getting the same codes. Car runs fine but while driving it will do a small buck only for a millisecond and then goes away. I am thinking maybe I pinched a wire somewhere. Any suggestions?

 

[rubydist]

I'm thinking there is a dirty connector somewhere on the mafs circuit - that will result in too much voltage drop and therefore the 'voltage below minimum' code.

 

[luigisho]

That or bad MAF sensor.