My 6.0 swap won't start.

Seem to be getting fuel. (wet plugs)

No spark.

I have power to coils and control power for packs.

Hptuners, says CKP P0335, but I put a new one in it and no change.

triple checked the wiring and plug, it "rings" out just fine and it has 12.7v at the right pin, with key on.

Have a 2002 6.0l/4l80e "411" computer and Hptuners mods just to get it started... emissions off, and vats (fuel pumps work)

tired and couldn't think anymore, so I went home and took a shower. and looked at some pin out diagrams.

I don't remember using P 34 Neutral safety switch, it is still hooked up to the car but not the PCM! is that maybe it?

if not what else may it be?

 

B32 and B34 are the PN pins that must be grounded to run

Some pinouts call for one or the other, some call for both. I err on the side of caution and ground them both as more grounds than necessary changes nothing. Too few... well you know

 

sweet, working by yourself on lil problems like this takes a toll. Taking a break really helped, and so did you I will give that a whack...

still if anyone knows something else that it "could" be let me know...thanks

 

On this truck, "411" pcm 2002 diag. for a 4l80e it also calls for c1(blue)72, c2(red)62 to be grounded by the Park/ Neutral Safety Switch .


didn't fix the crank, but no start problem!!!

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