Intermitent electrical shut off

that is a good car so I would let a shop do a Diag correctly

Your actual speedometer may be bad. You can get a replacement at the salvage yard to find out without spending money for a new one.

It may be your transmission. If it shifts hard going through gears also then it may be that. But what you decribed it it slipping gears which would target your transmission or rear end.

ENGINE COULD BE GETTING TOO HOT.CHECK ANTIFREEZE LEVEL AND TRANSMISSION FLUID LEVEL.

it is the computer. send it to auto computer exchange in davie fl they can fix it.

try changing the drive shaft speed sensor, sounds like you have a malfunctioning drive shaft speed sensor, change sensor and reset codes and test... e 300 had this problem in 94 and 95 even when they were close to new with very low miles... please rate my help , thanks

PLEASE TAKE IT TO UR LEXUS DEALER AND LET THEM FIX IT ONCE IF IT HAPPENS AGAI DUMB THE CAR

engine light keeps comeing on n sometimes the battery light comes on my 94 lexus es 300 wat does tat me

I have a 94 lexus es 300 and I have the same problem the check engine and o/d light is on and it drives slow in first or second and then it will shift into 3rd with no problem i went to a tranny shop and they replaced the p0753 Shift Solenoid A Electrical and the p0773 Shift Solenoid E Electrical and drove around the block and after 15 mins the lights came back on and car acted the same way and got the same codes so he didnt charge me anything and was like he didnt know what it was so now im stuck with a car that doesnt have 1st or 2nd gear so if anyone can help im open for anything