My 1992 automatic SC400 will turn over strongly but will not start. I rebuild my ECU (replaced about 9 capacitors) and thought that had fixed the problem but after a day That proved not to be the fix. Help, any ideas?

 

Have you bypassed the fuel pump ecu yet, thats a must for an older 400.

 

How do I bypass the fuel pump?

 

im currently having the same problem on my sc300. check your distributor cap and rotor. and check for spark.

 

Check out this thread, there are some testing procedures in here, I believe you should start at post number 8.

https://www.clublexus.com/forums/sc-...on-issues.html