Quote:
Originally Posted by GuidoK
Still that car had to be defective at some point.
If obd2 protocols had been implemented correctly it would have known the engine had been running lean.
It is required that by law that an engine light pops up (enviremental reasons).
But what crap car comes stock from the factory that the fuel pomp cant deliver the projected amount of fuel?!?
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It was a '99... 12 years old at the time. Things start to give out.
Just because OBDII is required by law doesn't mean it actually works in all cases. I'm saying never rely on a check engine light to determine if you're running lean, or if the fuel pump isn't providing adequate fuel. I saw it first hand.
OBDII is supposed to know these things... but is it an effective failsafe? No. It sucks in many cases. It's another tool to help identify problems, but a lack of a code is not a clean bill of health for a car.