1993 Lexus LS 400

Is the check engine light coming on at all? If so, and it should be, have the codes read and see where that points you.

got codes 13 and 41. replaced throttle position sensor and no difference in performance

The other code is an issue in the Crank Sensor circuit. Both codes need to be troubleshooted.

if i replace the crank sensor and it still runs like its misfiring and has no power then what

Nobody advised you to change the crank sensor. I said it had to be troubleshooted. You have to find the problem, not just throw parts at it. This isn't something that can be determined online.

well ive changed the plugs cap n rotors..throttle position sensor..could the timing be off?

no spark on driver side rotor wires..,but plenty on passenger side rotor wires.. what causes this.. car wont crank

This system uses 2 coils and 2 ignitors so i would suspect that one or the other is bad for those cylinders. It would require some testing to determine which.

thanks for info do u know where the igniters are located on 93 ls 400

i also got a code 14

The Igniters are mounted on the inner fenderwell at the passenger side of the engine compartment.

i got a code 14

Data Trouble Code No. 14 - Ignition No. 1 Signal Circuit

Detecting Condition

No Ignition Confirmation Signal 1 to Engine Control Module for 8 - 11 consecutive Ignition 1 signals.

Trouble Area

* Open or short in Ignition Confirmation 1 circuit from Igniter No. 1 to Engine Control Module
* Igniter No. 1
* Engine Control Module.

so what should i try

What you should try is having the problem diagnosed properly with the right equipment. You can simply throw parts at it if you choose but that can be a lot more expensive. We don't do things that way.

put another left side coil in and got spark on driver side but still not starting.. timing marks line up getting fuel but not starting