I'm going to have to replace the ECU on my '94 Camry

[i_am_jim]

I've ordered a replacement part and removed the glove box. But, it's not obvious how I remove the unit to replace it. Below is a picture of the ECU and upper bracket. It appears there is only the one screw holding the unit to the upper bracket and it simply rests on a bottom rear bracket. Is this correct. There's a awful nest of wires in there, obstructing my view, but I can't see any other attachments.

[Chris Crash]

Just remove the bolt, not the screw, at the top right of the picture. There should be a bottom bracket with a bolt attaching it to the firewall, too. Leave the brackets attached to the ECU and remove!

You only need to remove the three or four wire clips on the front of the ECU, nothing else.

[LynchburgCSI]

http://www.**********s.com/camry/

you're going to have to LOOK hard... but its in there.

[73sport]

Just curious why ya pointin the finger at the ECU?

[i_am_jim]

Originally Posted by Chris Crash

Just remove the bolt, not the screw, at the top right of the picture. There should be a bottom bracket with a bolt attaching it to the firewall, too. Leave the brackets attached to the ECU and remove!.

Do you mean this nut?

It looks like that just holds the gray box on the right. Does removing the gray box provide access to the bracket that's bolted to the firewall?

Here's what it looks like from underneath.

[i_am_jim]

Originally Posted by 73sport

Just curious why ya pointin the finger at the ECU?

The overdrive lamp is flashing and the cars seems to start off in high gear. After a couple of hours of research, it seems like these symptoms may point to the ECU.

[Chris Crash]

Originally Posted by i_am_jim

Do you mean this nut?

It looks like that just holds the gray box on the right. Does removing the gray box provide access to the bracket that's bolted to the firewall?

Here's what it looks like from underneath.

Yeah that nut. And the two nuts on the bottom picture in the lower right hand corner as well.

[i_am_jim]

Thanks for the help

[EEngineer]

why do u need to replace the ecu?

[73sport]

Originally Posted by i_am_jim

The overdrive lamp is flashing and the cars seems to start off in high gear. After a couple of hours of research, it seems like these symptoms may point to the ECU.

There's a whole lot of other stuff that could cause that. Unfortunately high gear starts are very hard on clutch packs. What's the fluid like and what is the WHOLE History on this thing if you don't mind sharing. . . . How many miles?

[i_am_jim]

Originally Posted by 73sport

Unfortunately high gear starts are very hard on clutch packs.

That's why I'm now shifting manually.

What's the fluid like . . .

Fluid looks clean.

what is the WHOLE History on this thing if you don't mind sharing. . . .

The whole history is, it began doing this day before yesterday.

How many miles?

94000

[LynchburgCSI]

the obvious.... did you try resetting the ECU? (removing the battery cable for 5 minutes?)

[i_am_jim]

Originally Posted by LynchburgCSI

the obvious.... did you try resetting the ECU? (removing the battery cable for 5 minutes?)

Yes

[EEngineer]

i have a feeling ur problem lies not in the ECU

but feel free to give it a shot

[Owner_of_2_Camrys]

Originally Posted by i_am_jim

The overdrive lamp is flashing and the cars seems to start off in high gear. After a couple of hours of research, it seems like these symptoms may point to the ECU.

Hey i_am_jim,

I'm having the exact same issues with my 1993 V6 Camry. Damn car has been a real pain and a money pit to say the least. I recently spent $500 replacing the Automatic transmission with an imported one from Japan, and yet the same issues persists. If it ain't mechanical, then it has to be electrical, right??

So I too have done the research and am left to consider replacing the ECU. If you can, please share with us your results. Thanks ahead of time, man.