A Guide for connecting a 1G TT ECU to a 1G/2G NA harness

[Tool Man]

Ok, I have a question. I'm in the middle of my conversion on my 94. Using a 1st Gen TT ecu and my 94 NA harness. The TT conversion car I'm using for the donor has a 1 O2 setup on it. The only o2 sensor is the rear one. The fron O2 Bung has a bolt in it. It's using the first gen tt ecu and harness. Should this work ok?

[Mr.3000]

I would run the two TT O2 sensors because the TT ecu is expecting two signals.

[green-lantern]

Originally Posted by Mr.3000

I would run the two TT O2 sensors because the TT ecu is expecting two signals.

oh yes! I would definitely use both O2 sensors. That is very strange that the donor only had one (could have been its demise)

[green-lantern]

Originally Posted by Tool Man

Ok, I have a question. I'm in the middle of my conversion on my 94. Using a 1st Gen TT ecu and my 94 NA harness. The TT conversion car I'm using for the donor has a 1 O2 setup on it. The only o2 sensor is the rear one. The fron O2 Bung has a bolt in it. It's using the first gen tt ecu and harness. Should this work ok?

updates TM, you really ought to start a thread.