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1G Fixed TCU Limp Mode but more woes.

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92AWDTalonTSI

10+ Year Contributor
334
7
Jun 2, 2010
Somonauk, Illinois
It turned out that my TCU was in limp mode because the connectors on the transmission were incorrectly inserted.

Wow, how simple right? Not really. I am in limp mode again. I connected switches to the TCU to control the shifting solenoids. I have solenoid A working. But not B. Solenoid A on is a low gear and off is a higher gear. But no response from B at all. I'll look at my connections later. I also could have them switched. Could be second and third gears. The can doesn't pull very hard in the lower gear.

Also. Shifting is very hard. Like a hard snap like jerk. I'm thinking MT Swap now >.<


Let me know what you think.


** Now my A/T Temp light is flashing like someone it rubbing a frayed wire over the power wire for the light. and I have a faint smell of AT Fluid. The trans is full though. >.<
 
Also. Shifting is very hard. Like a hard snap like jerk. I'm thinking MT Swap now >.<



** Now my A/T Temp light is flashing like someone it rubbing a frayed wire over the power wire for the light. and I have a faint smell of AT Fluid. The trans is full though. >.<

Shifting is going to be hard if you're not using the TCU, as it's running full pressure all the time. I'm just shifting my 1G auto with toggle switches and I actually like it. I hate autos usually, but in these cars they're pretty sweet (on the stock tune they seem really laggy and make the car seem slow and sluggish, but with a decent tune they're great). I'm debating selling my 2G manual to keep my 1G auto as my only main car.

I would double check that you're tapping into the correct wire for solenoid B, and then check it with an ohm meter to see if the solenoid is actually OK. If the transmission is bad, you're in luck as these are one of the few cars that used auto's are usually considerably cheaper than manuals, and more reliable than the manual (supposedly).

You're checking it in neutral right? You're quite low on fluid if you're checking it in park instead.
 
Elaborate on checking the solenoids. If one is bad how hard is it going to be to replace? What ohm should it be?

If you check the other one first, you'll know what the ohms should be since that one is good. I have no idea if they're simple to replace or not. You'll obviously have to open the transmission up.
 
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