Chrysler Repair: 3.0L V-6 wont start after rebuild; jump sensor?, mixture problem, coolant temp

Question
Hey Roland,
I can't get my 93 LeBaron started. I replaced the head gaskets, had them serviced, everything is put back correctly (I think) all timing marks are on. Is their sensors I can jump just to get it running? Have checked 20 times to make sure everything is put back in place but still no run.
Have spark, compression, timing, fuel to fuel rail, injectors are clean but I don't know how to test if getting electrical. I'm kind of stuck.
Thanks in advance.

Answer
Hi Mike,
I don't believe there is a way to bypass sensors, rather you have to figure out whether any of the sensors is not working or off-value. The main sensor to check is the coolant temp sensor near the thermostat housing. Remove its two wire plug and check if its resistance is 7,000 to 13,000 ohms; same with the charge temp sensor on the intake manifold.  
I would try to readout fault codes from the computer.
Ignition key:"on-off-on-off-on and leave on" doing this in 5 seconds or less elapsed time. Then watch the check engine light which will be "on" to begin to flash, pause, flash, etc. Count the number of flashes before each pause, then repeat the readout to verify you have the count correctly. Then pair them up in the order they readout to form two- digit fault codes. The last will be 55, the code for end of readout. Then write back or go to www.allpar.com/fix/codes.html
for a tranlation of the codes. I can tell you how to remediate whatever codes you get.
It would seem that you have a mixture problem, IF the injectors are firing. Usually you can hear them click unless the cranking noise is too loud. Are the plugs wet with fuel? Might your egr valve be stuck open (lever the the valve stem by inserting a screwdriver tip into the slot and test for freedom of movement)?
The injectors have a common 12V supply on the dark green/orange wire which also powers the spark coil, WHILE you are cranking. Then each injector should show a voltage pulse (jumping from 12 down to 0V) on its individually colored wire every two engine revolutions. See if you can probe at the harness connector or probe thru the insulation of one of these individual "driver" wires with a very fine pin to get a connection to the conductor. The wires attach to pins 16,15,14,13,38 and 58 of the pcm for cylinders 1-6, respectively. But you would need to have the plug inserted in the pcm to see this, thus the need to probe one of the wires.
Let me know what you learn.
Roland