Does anybody in his forum have any clue how to REALLY fix a code 13. I have been through every test posted on this site and nothing will fix my issue. I'm not interested in anyone's speculation. I need the check engine light to go off. I'm so done with spending hour after hour with this piece of only to have the light come back on yet again. My next procedure will be to drain the oil and put a brick on the pedal and laugh with delight as it explodes. Sick of this LS !

 

Didn't state which year you have but generically:
Did you recently do a timing belt change?
Check that the cams and belt is in the proper position.
Cam sensor is ok?
All vacuum lines are ok and not split or detached.

Also keep in mind this:
https://www.clublexus.com/forums/ls4...capacitor.html

 

It could be:
ECU
Crankshaft position sensor
Open or short in circuit
Skipped timing

goodluck

 

all of those plus cam sensor

I would say the best odds are jumped timing belt, pinched cam sensor wire on passenger side, ECU, and passenger side cam sensor, in that order

usually if it is crank sensor you will also get code 12