[lDejavul]

So today I finally had a chance to install my new headers, ported TB and IM, flex fuel sensor and Rotofab CAI. I run the bosch 02 sensor to the first bung in the headers on the drivers side.

If I start the car with the gauge plugged in it will say heat and then ls4.9 then will rev and little and completely cut power to the engine.

If I start the car without the gauge plugged in. It will start and run fine, I drove for about 20 minutes without issue. Then I plugged the gauge back in and the same exact thing happens it say heat then ls4.9 the revs and cuts the engine power until it dies.

Any ideas? I am really lost.