I had a no start condition on my V6 that turned out to be either a weak crank senor or the sensor wires and could have been both. I had no trouble codes to aid in the diagnosis. I tested the coil pack and detirmined the there was no signal to trigger spark, so I chose to replace the crank sensor and not the ECU and hope this was my problem. While unplugging the sensor I saw that there was also a wiring problem (the famous biodegradeable wire insulation), which I also repaired. When I compared the old sensor and the new one the ohm readings were not the same and the old senor had an oil varnish on the magnet(160,000 mile on the car). I believe this all contributed to a weak signal. Replaced the sensor, repaired the wires, and the problem was solved. Also , on a side note, I would occationally get a blinking CEL for a stuck TCC sol. that hasn't returned since this repair.
