so its a 351w 5.8
got spark from coil to distributor to plugs
got 38 lbs of fuel pressure
injectors are firing
timing is dead on
compression is good

only code is 654

just cranks no start sputters alittle like its trying. banging my head
any thoughts? ECM?

 

This is thought...May have spark, but a weak spark.Coil may not be able to deliver voltage to fire. I had a similar problem and coil was worthless when cold. Tried hairdryer and it would fire over. I had a MSD coil and only lasted 6 months. 20 year old Motorcraft coil fired it right over.

Try pulling SPOUT and try cranking it over and see if it fires.

Just a couple of ideas...

If it fires without SPOUT jumper, my guess is PIP/Stator is bad.

 

The PIP/stator is used whether or not the SPOUT plug is in. Pulling the SPOUT out will only take part of the computer out of the equation.

You need to determine if the issue is spark or fuel. Pour a little gas into the intake when cranking, if it fires then you know you are missing fuel from the injectors. Not sure how you determined they were firing. If it does not fire up for a few seconds then you need to look at the ignition.

As previously mentioned, what color is the spark? Anything less than blue/purple means you have a weak spark that may not be strong enough to operate the engine.

 

You can also try holding the throttle on the floor and see if it starts. The engine may be flooded. Maybe a bad Fuel Pressure regulator.

If it starts with the SPOUT out and not with it in most of the time it is a bad PCM Computer.

 

How did this come about? Just died on you one day? Parked for awhile?

Check your exhaust and intake for blockage... you might be surprised...

 

Doesn't start spout in or out and checked injectors with both mood light and stethoscope. Drove it home from work fine woke up No go. Won't start with ether either but I have blue spark.

 

Give it a snort of starting fluid or even carb cleaner will work. If it tries to run, it's fuel. If it just belches or does nothing, it's spark/timing related.

 

Are you sure your timing is right? As in have you checked it since your no start? I had a chain jump a tooth once, did the same thing. drove it home, went to start it and nothing.

 

That is a very plausible my friend

 

Yes , jumped timing is possible . Another thing , are you checking for spark at the plugs ? or just at the coil .?

 

I have checked timing by pulling the number plug for tdc and spotting the rotor at number tit on distributor

 

checking spark from coil to distributor and distributor to plugs with spark tester and pulling the plugs and grounding to the block to examine the density and color of spark. its not making sense guys haha :banghead

 

Are you using a lamp type tester , or a jump gap tester ? I have seen the lamp testers give bad results .

 

im leaning towards ecm because the problem occurred after a hard freeze and im getting a code 10 154 and none of those are diagnostic codes by both jumping the self test and with a code reader. talked to the po today and he said he did a motor swap to the Windsor and left the 302 ecm in. I know you are about to crucify me by saying that it was running prior so not the ecm but it could have been coming and the hard freeze forced moisture into the weathergaurd and shorted out a ground or something the only reason I haven't pulled it yet is because I want to troubleshoot it down to being at least 99 percent sure its the ecm before I tear it up :beersip

 

sorry . Just red the bit about grounding the plug and checking ....