What all did you do and how? I removed my smog pump and I still got a Check Eng. light. I also have a 96 F150 5 speed manual.

 

I have a '93 with the 5.8L auto 4WD. When I bought it last year it needed a lot of work. It was basically a farm truck. The exhaust was rusted and had holes in it. The vacuum lines were dry rotted, vacuum reservoir rusted. The smog pump piping was rusted out. Since I replaced the exhaust system with a dual exhaust from the H-pipe back (no cats), I decided to delete the smog pump. The EGR valve is a separate system from the smog pump. I left it in place, since it performs a different function by routing exhaust gasses back into the intake to help cool off the cylinders, as opposed to the smog pump which pumps air into the exhaust to helps the cats better burn hydrocarbons.

What all did you remove? You need to remove the entire system, not just the pump itself. This includes the vacuum lines:



Instead of removing the pump, I took it apart and removed the guts, relubed the bearings, capped the openings and reinstalled it as a pulley so that I can use the same drive belt:


You also need to plug the holes in the back of the heads when you remove the crossover pipe, plug the top ports of the TAB and TAD sensors, then tie the bottom line going from both bottom ports of the sensors to the vacuum tree:


No check engine light.

 

Ya the Government makes Ford put the smog pump and Egr valve on anyway. Cars Ran fine for 70 + years without them.

 

I know this is a really old thread. I stumbled upon it while looking for info on the impact of having an EGR delete in my 95 F150 XLT 302. After reading some of the comments, I thought I would say that I deleted my smog pump maybe a decade ago and then the rest of the setup at the back of the heads in 2019. I have never ever had a CEL as a result. I only recently had a CEL for like maybe the 2nd or 3rd time in over 20 years and it was related to insufficient flow in the EGR. I found the port on the intake clogged almost completely with carbon.

I love my truck.