Mechanics

LEXUS LS 400 SENSOR PROBLEM

1993 Lexus LS 400

Engine Performance problem
1993 Lexus LS 400 V8 Two Wheel Drive Automatic

93 ls 400 is misfiring and has no power, when accelerator is pressed to floor it barely idles up and goes down. Smells like fumes
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Kopeye
September 22, 2010.




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.

Wrenchtech
Sep 22, 2010.
Got codes 13 and 41. Replaced throttle position sensor and no difference in performance

Tiny
Kopeye
Sep 22, 2010.
The other code is an issue in the Crank Sensor circuit. Both codes need to be troubleshooted.

Wrenchtech
Sep 22, 2010.
If I replace the crank sensor and it still runs like its misfiring and has no power then what

Tiny
Kopeye
Sep 22, 2010.
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.

Wrenchtech
Sep 23, 2010.
Well ive changed the plugs cap n rotors. Throttle position sensor. Could the timing be off?
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Tiny
Kopeye
Sep 23, 2010.
No spark on driver side rotor wires, but plenty on passenger side rotor wires. What causes this. Car wont crank

Tiny
Kopeye
Sep 26, 2010.
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.

Wrenchtech
Sep 26, 2010.
Thanks for info do u know where the igniters are located on 93 ls 400

Tiny
Kopeye
Sep 26, 2010.
I also got a code 14

Tiny
Kopeye
Sep 26, 2010.

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