Replaced all spark plugs earlier this morning. Four drivers side plugs were light grey, but the four plugs that came off the pasenger side were black. Does this mean that the passenger side bank of cylinders are running rich? can this be possible?
I thought the fuel delivery was all one system, ie: one fuel rail for all eight injectors.
It's the one fuel rail, however you have an oxy sensor for each bank. Possible one sensor is buggered, but at $150, don't go ripping it out on my advice.
It's the one fuel rail, however you have an oxy sensor for each bank. Possible one sensor is buggered, but at $150, don't go ripping it out on my advice.
If it's one fuel rail for all 8 injectors, how can one buggered O2 sensor make it's bank run rich? Sorry I'm not disagreeing with you, just looking for more info.
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