need help with afr

RADIR

RADIR

Driver
IMG_1870.jpg
since i installed my new turbo manifold my afr is on 17 or shows blanks on idle and when im driving around its jumping up and down between 12 and 17 even if i keep the same speed, on boost its stays around 11.3 11.6 in 5th gear, other gears its starts rising to 13.7 or so im afraid to drive it like this someone help :ugh:
 
take the car to a tuner so they can hook up an af meter and see if the sensor went bad, if not gotta retune the car
 
OFF topic but what manifold is that?

AFR's on my car stay @ around 14.7 @ idle/cruising just for reference - what are you tuning with btw?
 
car just had been tuned 2 month ago by martin on a dyno and its R.S. enthalpy he sad that i dont need a tune if i change the manifold and it was working fine before
 
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