My 95 mustang is currently having surging issues. After being warmed up and then cooled off, then started up again, such as going into a grocery store and coming back out, its surges. I will try to describe surging to me because its kind of confusing. After I start it, the exhaust tone changes from running smooth to also an extreme cam sound. It still has the stock cam. The engine begins to run even lower in rpm and nearly stalls at the first stop I make. I can't tell if its not getting enough air or enough fuel. When I start to drive it while it has its issues, it wants to be sluggish and not have any balls as if it were missing a few cylinders. The car coasts by surging back and forth, almost trashing me back and forth in the seat. After stomping on the gas in frustration it goes away for a sec as it reaches higher RPM but continues when my foot gets out of it.I have currently replaced all the spark plugs/wires/cap and rotor and still no improvements. My ideas are the throttle position sensor is shot, or the MAF sensor is dirty. Either way I'm not certain and don't want to throw money in parts at it in hopes for results. I have tried disconnecting the battery and such but still no luck. If you need more details on my car just say so. My next bet is to take it to a Ford shop and have the codes ran in hopes for something to pop up. What are your suggestions or ways in which you would work this out? All insight is welcome. Thanks
