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Old 04-13-2021, 12:07 PM   #7
86Dreams
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Member#: 385256
Join Date: Mar 2014
Chapter/Region: NESIC
Vehicle:
'18 Giulia QV
'21 Giulia Q4

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Quote:
Originally Posted by snow_bound26 View Post

What should I be looking for with fuel trims?
theres 4 different ranges for air flow, they correspond to different levels of manifold pressure and if one is higher or lower than the others it can point to where to look for some kind of leak. assuming your tuner didnt change the ranges they capture. if the D range is not adjusted that actually might be why you run a little rich at full boost, maybe.

do you have any pending misfire codes?

compression and leak down are still worth doing since the motor has been in service since the original test. compression is atleast pretty easy to do on your own, leak down needs special equipment.
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