Running Lean with Spectre CAI

Riordan · Apr 12, 2021

UPDATE: I have lean codes now for both banks. I am looking for some sort of help getting this tuner set up for my needs. I have a 2009 yukon 5.3 with a Spectre cold air intake and a Diablo intune 3. I had some problems with the intake before so I had to remove it until I could get a tune. Now that I've got it the truck is drivable with the tuner but still has fuel trims ranging from +10 to +30. Any information helps not throwing any codes related to this and while reving the engine the fuel trims even out but at idle are terrible.

ANYTHING HELPS.

Foggy · Apr 12, 2021

It "may" just take some time for the ecm to learn... but in my experiences the cold air intakes for these years of trucks suck...
and prob need to have the tune adjusted...
You really gain zero power with that intake. The benefits are better "sound" and cleaning up the engine compartment..
But you are really NOT getting a true cold air intake unless its fitted to something close to the oem intake box that
seals to the inner fender for "fresh air"
sorry I don't have great news, just trying to help

Running Lean with Spectre CAI

Riordan

TYF Newbie

Foggy

Full Access Member

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