====Cars Bogging for apples=====

[Nismo408]

WHen i take my 240 out on the highway for about 30 minutes, it seems to BOG if i punch it. I do not know what the problem may be, but i found a cracked spark plug wire that could have been grounding out, i just taped it up for now. ANd could it be my MAFS, any sensors, Fuel problem, or Misfiring? Its a 1990 240sx sohC 5 spd.

Another thing is that when my car idles, it misfires kuz #3 cylinder fouls out sometimes, Any one know what i can do to fix that?

Any my air/Fuel ratio say im running rich when i floor it, is that normal?

[bcar240]

I would start with a general tune-up (plugs/wires/etc...) and if that doesn't solve it. I would check the MAFS and coolant temp sensor. The MAFS sounds like the most likely culprit to me. Failing to find the cause in those two I would begin looking at emissions stuff like the EGR.