'01 7.3 PS Will Not Start - Checked All The Obvious

[truckguy1977]

Gentelmen,
I recently purchased an '01 F250 4x4 7.3 Powerstroke which was not running and I can not make it start for the life of me. I have done some extensive searching in these and other forums and there is obviously some very knowledgeable people out there, so I am hoping someone can help. The engine is turning over fine and fast enough I believe, sounds right, it just won't start. Here is what I know/have checked:

-it has been sitting a while with no batteries. I scanned the computer and get no codes.
-I have replaced the CPS with one I know is good.
-I have checked the HPOP resivoir and it was full.
-The fuel pump is pumping, filling the filter housing, and I have drained water off.
-Oil level is full (if not slightly over-filled) although oil is very old and thin.
-When I crank it the tach does move slightly and the oil pressure comes up after 5 seconds or so of cranking. Also, the "wait to start is cycling" like it should and besides it was 80 degrees here in Dallas today.

Here is the real kicker though - it will not even pop off with starting fluid (which I understand is not always a good idea but should work if it is a fuel delivery problem). I understand the LPOP, HPOP, or even old/broken down oil could cause this starting problem but regardless it should still start with eather - right?

Anyone have any idea?

Thanks.

[mschn99]

how cold is it in your area right now??

have you checked the glow plug relay....have you checked the glow plugs??

[truckguy1977]

Marc,
It was 80 degrees here today and I replaced the glow plug relay. Otherwise, no I am not sure if they are working but thought it was warm enough that it should have at least popped off with the starting fluid....

[mschn99]

first things to check...]

pull codes..

monitor ICP on a scan tool..

fuel pressure....

[truckguy1977]

Marc,
I appreciate your input, here again is some of what I know:
-like I mentioned in the first post, the truck sat for a while with no batteries so I imagine any pre-existing codes were lost. It has not actually started up since I put batteries on it so I don't think it could throw any new codes. Regardless, the SES light goes off and I did scan it but found no trouble codes.
- I am not equipped to check fuel pressure, but I know the pump is pumping. Even if it is not pushing enough pressure wouldn't it start when I spray starting fluid in the intake tube?
- And finally, here is where I show my real ignorance - what is the ICP and how do I check that out?

[losfinch]

"it's on the driver side head on the inside at the front to the right of the fuel filter, it ha 3 wires in the connector.also if there is any oil in the sensor or under the connector you should replace the sensor." (Stolen quote from another thread above this one)

Pull the connector off and see if it starts.