bigfootchiro
Full Access Member
Check the MAF just in case. I don’t see how a puddle could cause this to happen otherwise, unless coincidental.
Tonyrodz's Tahoe Build Thread
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Check the MAF just in case. I don’t see how a puddle could cause this to happen otherwise, unless coincidental.
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Tonyrodz
Resident Resident
I actually have a spare maf. I'll swap it out. Wouldn't I get a code for it tho? Ever since all my motor mods, I've had a soft P0103--at least 2 yrs, with no issues. Swapped out different mafs back then with no change. Still no cel from all this.
bigfootchiro
Full Access Member
Not necessarily. I don’t have a Lean code thrown on mine, and my fuel trims were at 25% lol
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Tonyrodz
Resident Resident
So frustrating.
HiHoeSilver
Away!
Put the belt back on. Keep the ratchet for the tensioner in the truck so if it comes back off, you can put it on.
If it drives, keep driving it. Check the data every day at idle after a long enough drive that she's good and warm. Post it.
@bigfootchiro is right about a vacuum leak vs fuel issue on the direction of the trims.
@Scottydoggs makes a good point that the ST is trying to correct it, and it's only one bank, good bet on a misbehaving o2.
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Tonyrodz
Resident Resident
Is there something online that shows how to interpret live data? I have no clue what I'm looking at.
bigfootchiro
Full Access Member
https://www.aa1car.com/library/what_is_fuel_trim.htm
This is a good read on how fuel trims work. It all depends on which PIDs you are looking at while watching the live data
HiHoeSilver
Away!
I prefer Scanner Danner.
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Tonyrodz
Resident Resident
What's that?
