My 95 mustang gt idles bad. I have changed the computer, fuel injection cleaned, front o2 sensors changed, I keep the K&N air filter cleaned, I've had it checked out at the ford dealership, but they could not figure it out, and you can smell the gas burning rich.


Thank you,
Trebor

If you have recently changed the spark plugs (Motorcraft only), I would clean the Idle Air Control Valve:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563-7.html#post1054149

Also, check for any vacuum leaks. If the problem persists, clean the throttle body and clean/replace the MAF Sensor. These last two steps require special products, so as not to damage the throttle body's Teflon coating or the MAF Sensor.