Mustangbabe

<FONT face="Verdana, Arial, Helvetica, sans-serif" color=red size=4>I have a95 5.0. The problem is that the o2s are reading that the car is running lean. If I let the car sit for a few minutes and let it idle, I can get one good pull out of it as if it was running fine. I had the fuel pump checked and the fuelpressure-they were both fine. I am embarassed to drive especially after a cavalier beat me. I recently replaced the spark plugs, have all MSD ignition, new O2s, K&amp;N fenderwell kit, 3.55s, off road H-pipe, dynomax cat back. Please give me any advice- I have tryed everything that all my mustang friends have told me to do!!!</FONT>

vfast

what is the reading on the tps?.....are you using the stock maf? seems to be a sensor..can you pull any codes?

jeep45238

Are your O2 sensors for your computer working correctly? If it's lean (or anything but right on), that could be a major reason why.