1993ES300x

Hey guys. this is my first time posting.. i was driving my 93 Es300 on the freeway went up at 70 -80 mph. and then the dam engine light came on..my stinking car has a 200K on it. but i was told the engine was swap. and it only has 110K .. i been reading some other post.. some say it's the O2 sensor.. please help..

lexusk8

You can go to any Autozone, Advance Auto Parts or Pep Boys store and ask to have your check engine light diagnosed for free. They have an electronic scanner that does the job.

And don't call your car "stinking"; you should be proud that the ES has reached at least 200K on the odometer. Goes to show you how reliable and long-lasting your car has run

yoji6365

I did it myself, but I read somewhere it may only be possible with California models.
However, for a 93, mine was originally bought in NY and it still worked.
The California thing might be for the newer models.

You can check it yourself, all you need is a jumper wire.

EI and TEI terminals on your diagnostics 1.

Its under the hood, passenger side by the front struts.
Its a small rectangular black plastic box. Pull the cover.

E! and TEI is on the left set of terminals.
There should be nine terminals on the left side.
E! is the top right
TE 1 is the one in the center.
The inside of the cover you opened should have a diagram.


With the car turned off, put the jumper wire in.
Turn key to on but do not crank the engine.
Check engine light will start blinking.
Count how many times it blinks, there will be a set of blinks , a short pause, then a few more.
Then a longer pause, and the new set of codes will start blinking.
Have a pen and pad ready to take down the number of blinks

I had code 52 and 55 which are knock sensors.
5,21,27,28 are oxygen sensor related.

Also, troublecodes.net is a good website to check out, thats where I got this info.
This will save you a trip to a diagnostics scanner.

1993ES300x

yes yes. .my EX is GREAT... well. i call all those places(autozone, AAP, Pep boys. etc).. they all told me that they only do it for 95 and up.. man.. they all told me to bring it to the dealers.. dealers wanna charge me 70bucks just to check it. man. i think i'll try what the other guy told me about the jumper wires..

1993ES300x

jumper wire.. here's what i'm planing to do. i open the diagnostics box and it's kinda like creamy. i don't know how to explain it.. but it's like gelly stuff.. is that normal?? if you know what i'm tlaking about. hahaa.. anyways. don't know what a jumper wire is.. so here's what i'm planning to do. just use a paper clip.. put one end in the EI and the other end in the TEI. and turn the Key to ON and count the number of the " engine check " flash ?? right???

1993ES300x

it's elecritical gresse... haha.. shows how much i know about cars..

yoji6365

A jumper wire is just a short piece of electrical wire or anything metallic tha will complete a circuit.
A paper clip will work but it wont be as secure as electrical wire.
Dont worry about the grease, its normal

1993ES300x

hey there. while i was trying to put a paper clip in the E1 and TE1 and turn the Key On , i ran out of battery. had the thing jump and the check engine light did not come on.... should i still get the codes or don't worry about it??.

yoji6365

The codes will erase when the batttery is dead or pull a certain fuse. If the condition still exists, it will eventually come back. If it doesnt come back, youre set.