steve5chang

2006 TL here

Engine cranks but would not start (TPMS message flashes on dashboard), towed to Acura dealer and states:

engine control module to be replaced because of water intrusion from A/C evaporator case.
Due to unclog case drain tube...WTF?

Is this legit??

Thanks for any input

AndrewA

iTrader: (3)

wow, these are popping up like crazy. do a search on here and you'll see a few others recently.

Will Y.

Afraid so-- this does happen, because overflow of a plugged A/C drain tube will cause water to drip on the ECM/ECU/PCM, which is located on the floor of the console tunnel behind the audio stack.

Now, the interesting question: what was clogging the drain tube?
If you search for terms regarding water and fried ECM/ECU, several threads here on AZ mention that mechanics or oil change shop employees will sometimes put a bolt in the end of the A/C drain tube to stop condensation from dripping on them while changing oil or working on the car. Then they forget to remove the bolt to unplug the A/C drain, resulting in condensation backing up and dripping onto the ECM... A couple of Acura techs ran into several cases of this.

FYI, a fried ECM can cause misfires and fried ignition coil packs, so don't be surprised if the car needs new coil packs.

G/L; hope you get things fixed.

Manimal_Forever

Yeah i was a victim of that. still in the process of getting it fixed
-_-

gwiffer

iTrader: (7)

Anyone have an idea for some kind of water jacket for the ecu?

libert69

iTrader: (7)

^just spray some compressed air in the a/c drain tube under the car every couple of months

AndrewA

iTrader: (3)

The AC drain tube is on the passenger side right? Any pics?

libert69

iTrader: (7)

^yes it is, no pics here. just turn on the a/c and after a few minutes youll see the drip below the car....theres your tube