Quote:
Originally Posted by slowmover
10% drop is reason for investigation. This rule was old when I first heard it in 1970s. Fuel and air filters first back then. Next was spark plugs and points. These were after tire related.
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Its really odd, ever since i got the car it would ping with regular gas and then feel like a monster (for what it is) on premium. Now lately, the last couple months, it hasn't been pinging on regular and holds gear with much more throttle input.
I know there is something wrong since one side of the engine injects about 10% more fuel, the o2 sensors and cat temperature confirms this. But i dont know if it is the o2 sensors or the timing chain stretched.
I found out i have wideband o2 sensors stock, how do i view the afr?