Go ahead and get it tuned and worry about that after. It can be caused because it needs tuned and the sensor is not heating up quick enough in the long tubes. The tune should lean out the idle and may get rid of the code. If it doesn't, the heater may just be worn out and the sensor should be replaced. Either way, it will not effect the tuning...

 

Almost similar to my combo, i made 470/430 on a dynojet,

Putting a 42# on a stock tune will inject 33% more fuel than stock.

 

I know its late but I brought trans fluid and coolant to mine. I couldn't start the car like you due to how much more extreme it was than before. I had no way of knowing how much fluid the trans will take considering it was just rebuilt

 

had it tunned car made 405 rwhp and 380 tq. i was hoping for a little more. what do you guy think is that low for what i have put into the car.

 

i was hoping to make closer to 450. what would i need to do to my car to make it to the 430hp 440 hp range. do you guys think 405 hp is low for my car for what it has?

 

What type of dyno & who tuned?

 

local vett shop dident ask what dyno it was. crap

 

I would think around 420-430 would be more where it should be... but, it really depends on the dyno - they can vary a lot...