98 running rich

[popcorn501]

No rich code. Smells a little rich. No black smoke and pour fuel exonomy.

 

[SAATR]

Well, if that's the case and it's making power like it should, then there may not be a problem. The only other thing you can check is your long term and short term fuel trims. Should be able to read them with a scanner. Also you should see the O2 sensors switching rich/lean constantly at idle. If they are, them there shouldn't be a problem, as long as the fuel trims correlate to that. If you can check it with a scanner, post your trims.

 

[popcorn501]

Long term bank 1 was going between 12 and 10 percent bank2 between 7 and 8
Short term bank 1 between 0 and 1 and bank2 -1 and 2 percent.

 

[popcorn501]

O2 bank1 sensor1 was all over the place from .130v to .845v and sensor 2 stayed about .250v
Then bank2 sensor 1 was all over the place from .240v to .780v
And sensor 2 stayed right about .280v

 

[SAATR]

Sounds like they're switching like they are supposed to, and those trims aren't bad at all. I wouldn't worry about it, and drive on.

 

[firefighter_2319]

try map (manifold absolute pressure) sensor. with it running unhook it and see if the motor changes, if it dont then i would almost bet that would be your problem but im about 50 percent on it. its located on the left hand side by the throttle body. a box about 4in or so long.