Ok so im getting my car road tuned and we ran into a slight promblem! I installed a warbro, o2 dump, 280 cams and intake..... Well when we log it, the front o2 is reading like 10-1 im getting way more fuel then i should be... my tunner said to cheack for an exhaust leak b4 the first o2 but everything looks fine no leak!! Let me know what you guys think!

 

Sensor could be going....did the tuner try and take fuel out and is he using a Wide band???

 

Do you still run with the same fuel pressure`??

 

TIghten down the exhaust manifold and everything else just in case. How old is the sensor? What does it read at idle?

 

If you hear a ticking, then you have an exhaust leak. Dont confuse it with lifter tick though. But my guess is the o2 is going bad.

 

i got it guys when installing the fuel pump i put the plastic piece on top of the o-ring....its supposed to go under the 0-ring so it was sucking fuel but wasnt sealed in so i got it all fixed