Okay guys I'm lost here... i have a 1992 toyota pickup dx 22re 4 cylinder automatic 4x4.... i recently drove through a lot of Ohio rain and pot holes and which cause my CEL and OD OFF light to start flashing... seemed to drive fine for awhile. After a few days, I was driving down the highway, good 20 - 30mins and I felt the OD kick off and it seemed like it was searching for it... i parked it and went into my interview (it was a good start to the day to say the least). I came back out, let it warm up like normal and left. All the gears shifted fine, except no OD... pulled the ECU cover to see a rust hole that let water in and splashed onto the computer... i checked the codes and there were none... idk what's going on. Is it a solenoid? Broken wire? Bad Ecu?. I replaced the temp sensor (the one on the right of the 2 sensors on the intake on front), a new stant thermostat, good mixed coolant, and did a trans service and cleaned the metal screen filter, still no change.... any help or leads will be greatly appreciated! Thanks guys

 

I would check the TPS as described here on page EG1-197 and EG1-198...
http://personal.utulsa.edu/~nathan-b...34throttle.pdf

 

Also check the tcm for codes. I don't recall the exact procedure, but a search will turn it up. The flashing od light means there should be one stored...

 

Codes: http://personal.utulsa.edu/~nathan-b...17diagnosi.pdf

It would help to know what transmission you have; it's listed on the door pillar.

Of course, there should NEVER be water on the ECU; it just doesn't get along with electrons.

 

Yeah, I had the Solas Pro on it and I don't have any codes... the trans is a340f.

 

Does the Solas Pro read TRANSMISSION codes? They require a different setup (shown in the page I cited) than for engine codes.

If the Solas Pro doesn't read transmission codes, you're going to need this much more expensive tool: http://www.staples.com/OIC-3-Size-Pa...product_525915

 

Yes, it does. I used the scanner and have done the paper clip way also. No codes lol.

 

Pull the plugs on the trans and some use dielectric grease or WD40 for quick.
Might have water in the trans harness switch.