Comments by "Aaron Britt" (@aaronbritt2025) on "Check Engine Light | Rookie Mechanic Mistake! Can YOU spot it? | P0135" video.

  1. @2:55... Heater circuit fault... I can't tell you how many times I've had a car in my shop with that code and it was just a fuse. So many people (even techs) don't realize the heater circuit has it's own fuse. Not saying that's the issue here, but it's the first thing I check. @15:30... You can get to the connector from underneath, just gotta wait for it to cool down so you can reach over the cat. @24:35... Yes, it is. That's the crankcase fresh air side. The PCV side pulls air OUT of the crankcase into the intake manifold. That creates a vacuum in the crankcase that is equalized by fresh air drawn IN from the clean air side of the intake. The problem is the PCV being stuck open, so even minimal vacuum in the intake is opening it. Should only open under high vacuum. @47:00.. Not only was he replacing the wrong bank, he also replaced the wrong sensor. That's Bank 2 SENSOR 2, not sensor 1. @54:50... I charge what the diagnosis should have taken. About 1.5 hours plus the part. I don't tack on the replacement time because replacement is part of the diag tree.
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