n/t auto trans question

[95talongirl]

I know this technially shouldn't go here, but I don't see a subforum for the 2.4L cars.....

Anyways, I recently picked up an eclipse spyder for a few hundred bucks. I was going to use it for parts, but the more I look at it, the more I want to save it? It's very clean.. no strut tower rust and such. HOWEVER, the auto trans is stuck in "limp mode". I don't deal with automatics much, so I'm curious if this could be caused my something electrical, such as the TCU? Maybe a faulty speed sensor? I read somewhere that the transmission is a F4A22. Is this true? .. man stick shift cars are so much simpler!

Any advise would be great! I'm going to see if I can pull some codes form it. Maybe I'll get lucky and it'll be something stupid.

 

[ilco187]

if its stuck in limp 3rd gear, that its more than likely the tcu, they can have cap leakage just like a ecu, take it out open it up and look for burn marks or blown caps.

 

[95talongirl]

Thanks! I;m going to check it out in the morning. I'm hoping it's something like that, as I'd like to drive it instead of the talon with the blown head gasket.

 

[95talongirl]

Looks like it may be the TCU after all. I'm getting a code p1600; and from what i read this means a loss of communitcation form the TCU. However, I also read that something such as a speed sensor could cause this... but I would think it would set a different code.

I did clear the code to see if it was just a fluke, but it came right back.

Can you use any TCU's? or does this HAVE to be from a 99 2.4 spyder? i.e.. could i use a TCU from a different year 2.4?

 

[davidaham]

Looks like it may be the TCU after all. I'm getting a code p1600; and from what i read this means a loss of communitcation form the TCU. However, I also read that something such as a speed sensor could cause this... but I would think it would set a different code.

I did clear the code to see if it was just a fluke, but it came right back.

Can you use any TCU's? or does this HAVE to be from a 99 2.4 spyder? i.e.. could i use a TCU from a different year 2.4?

now i no that the ecu on eclipses are partial to the year model due to there pin settings being different. so i am sure the TCU same way