Swaped a 1996 sunfire 2.2 and put in my daughters 1997 2.2 sunfire, Issue: no spark, Question: the only difference was crank sensor. 96 had three wire plug and 1997 has two, Left the 96 sensor in and rewired with two wires. I think this is my problem. I did not connect the blue wire. Any suggestions or solutions would be greatly appreaciated.

can you not just switch the sensor off of the 1997 onto the 1996 motor?

I ASSUME its a 2.2l VIN "4"? Better be SURE you put in the correct crank. Different years have different tone wheels for the Crank Sensor. If it ran before, it should run now. I think 2 wire connector is for power to coils Power to Pink wire comes from IGN fuse A. Pink is 12V, Black is ground, 6 wire plug is for ICM.(bolted to base of coil pack) cant bench test anything. Should be a code 42 if cranked for 5 seconds and no start if its a CKP issue.

cut the wires from 94 harness and splice them to the 96

Did the old motor run? Is this a used motor? Did you hear this motor run before you installed it? Have you tried running it with the exhaust unbolted from the manifold?

your computer is confused

check spark plug wires and coils for moistore put some lube on the coil wires check for spark after it wont start if itll crank but not start its 1 of 2 thinks no spark or no fuel usally when the coils get too wet they wont allow spark to come through or will cause it to arc

As long as the 96 one looks the same as the 97 and fits properly.

Try turning the key to the on position three times, then leave it on the third time and wait about fifteen minutes for the security light to stop flashing. then turn the key off and try to start it.

Change the coolant sensor, it is stuck in advanced mode causing the engine timing to be out of sinc. Do not over tighten the sensor. About 5ft.lbs is enough. Good luck!

it may be a problem with either the computer or the temp gauge is rated to low or high