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    P0324 code, tahoe 2018, what am I looking at?

    Hi all, First huge thanks for the previous help with the p0172 and p0175 codes. The advice was to keep cleaning the throttle body when the code appears and that has been solving the code for the last 20k. Every 1-2 months, on the clock. It got very recent lately, once a week the last 3 weeks...
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    System running rich. Random check engine light, P0172 (pending) / P0175 (current)

    The update: The codes did not show up again, and we drove the truck for few thousand kms so far! Thank you!
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    System running rich. Random check engine light, P0172 (pending) / P0175 (current)

    It looks like I will be driving for a bit until they stabilize sadly. I am a bit embarrassed to admit that my scanner is a cheap $20CAD BT (Veepak something) from Amazon. I am trying to see what would be a good scanner for the truck, as I plan to keep it for a long time and it has a lot of...
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    System running rich. Random check engine light, P0172 (pending) / P0175 (current)

    I cleaned the throttle body (lots of deposits) and the numbers are better. I noticed the truck's trims ends up in two cases: Idle after ignition stabilizes and is great, idle after short drive is a bit worse off. What do you suggest, do I continue hunting this down or is it good enough now...
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    System running rich. Random check engine light, P0172 (pending) / P0175 (current)

    Here's the graph. I didn't know a better way so just pushed the pedal down in 100RPM increments, and read the numbers eyeballing what they averaged to the best I could.
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    System running rich. Random check engine light, P0172 (pending) / P0175 (current)

    Thanks for the reply. About the Trims: Both banks are about the same. On idle, short ones are around 0 to 2% B1 is about 1% higher than B1 on and off. If the car doesn't move, at 1500, B1 is -3% and B2 is -6% If I am starting from zero, at acceleration near 1500, B1 is -2%, B2 goes to -8%...
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    System running rich. Random check engine light, P0172 (pending) / P0175 (current)

    Hi all, Long time reader here, first time poster. Big fan though :) I am stuck trying to figure out P0172/P0175 that are coming up once a week after reset. Before I go poor swapping parts I figured it may be a better idea to see what the pros here think :D Basically, I am stuck what should my...

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