car wont start
 

I have a 90 mk3. My car turns but it wont start. I had check sparks and its good. Also i have fuel coming as well. I check the fuel line. Sometimes the car will almost turnover but it wont. Anyone can give some tips. Its all stock. Oh and timing is good too.

When did the problem start and what were you working on when it happened (if anything)? Have you tested the igniter and CPS? Any diagnostic codes? Is this a Turbo or non? Tested the fuel pump and fuel pressure?

Cam Position Sensor
 

I had this same problem when I first bought my Supra. I could crank it for hours and it would never start. The problem was the cam position sensor, which had nothing wrong with it at all. Its the connection and/or wiring harness. Our cars are old and the wires become weak an brittle over time PLUS the wires for the CPS run right over the head...bad news bears.

My temporary fix was to disconnect CPS connector, clean, re-attach, and make sure it had a good connection...well that didn't work. Next I simply just took the wires that ran over the head and gave them a good jiggle/shake and boom! Started right up. Later I did re-wire it and no problems since. Hope this helps.