emission

I have been having alot of problems with my engine running rough and not running at all. I have been digging through wires and relays. I cracked open my eec to find that pin 46 was fried. I know multiple things run to this pin since it is a signal ground. What could cause this to burn up so it...

i have 2.9l 4x4 1990 ranger AUTO, was throwing a CODE 41, so i replaced HEGO sensor, after couple of days light come back on but almost only comes on when the throttle is released very quickly, so i went to the next thing that could be bad, EGR valve, when i went to find the DPFE sensor and EGR...

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I have a 1996 ford ranger v6 4l. A few months back my check engine light came on, so I read the code and it came back as (p1443 evap emission contol valve). I also have a loud vacumm noise coming from the engine bay when im idleing, as well as poor gas mileage (~10mpg city). Anyone know what the...