Reef13

Alrighty so I had a code 42 on my transmission yesterday and I replaced my number 1 speed sensor ( the 2 wire one) so far the code has not come back. So there are no check engine lights or O/D lights on or blinking. The transmission and engine runs smooth the only thing that doesn't work is the O/D will not work. The switch to turn the o/d on and off works, but no cause and effect. The ecu has not been serviced for the capacitors, is the ecu the problem? My car is a 1995 sc300

LEXUSver

Mine is a '92 SC300 with the following problem description:
PROBLEM: TRANSMISSION WILL GO ON LIMP MODE WHILE STOP WAITING FOR THE TRAFFIC LIGHT TO TURN GREEN. CAR WILL HESITATE TO MOVE SO I HAVE TO SWITCH TO GEAR ONE FROM DRIVE. MY O/D INDICATING LIGHT WILL FLASH AND THIS HAPPENS INTERMITTENTLY.
SOLUTION: BASED ON MY RESEARCH AND TROUBLESHOOTING, I DETERMINED THAT BOTH CONTROL SHIFT SOLENOIDS 1 AND 2 WERE DEFECTIVE. EACH ONE COSTS ABOUT $300 AND MUST BE SPECIAL ORDERED. I PATIENTLY LOOKED FOR THESE ITEMS IN THE JUNK YARD BUT TO NO AVAIL. I DID NOT FIND THE SAME SIZE THAT WOULD FIT MY TRANS. I ENDED UP SOLDERING BOTH AND REINSTALLED. IT HAS BEEN 7 MONTHS NOW AND THE O/D LIGHT THAT USED TO LIT INTERMITTENTLY IS GONE AND NO MORE DIFFICULTY SHIFTING FROM 1ST GEAR WHILE IN D MODE.