I Have an 89 5.8 that Im taking the emissions off of like the A.I.R. pump and egr. What all needs to be done so it will run properly?????? Your help is appreciated Thanks!!

 

Make sure you are not in an emissions inspection state if you are going to put that truck on US roads is the first step. Second step if the first step passes, make sure to leave the electric switches in place so the computer doesnt throw codes but the EGR will always come up as being closed with an error code. Make sure to close the ports that were previously occupied by the emissions 'crap' so exhaust doesnt leak out of the wrong spots and a high idle condition doesnt come up from vacuum leaks.

 

What electric switches are there that should be left in place???

 

Welcome to FTE and the Big Bronco Forum. You are most likely not going to like the response I am going to give you to this question but if you search the forum and read up on this topic you will see that the suggestion to keep the emissions equipment and keep it maintained properly is indeed the best suggestion. Nothing will make it run properly if you remove the things you are talking about removing. Sorry but the on-board computer needs the sensors and ESPECIALLY the EGR functioning properly. If you want to strip the engine of the emissions equipment (which truly makes no sense) then you are better off yanking it and dropping in an engine from an older vehicle. Trying to "get around" the emissions control systems on an EEC-IV electronic engine control system will only cause more problems with idle and fuel economy. The emissions are fully integrated into EEC-IV and removing parts and pieces arbitrarily will never yield a satisfactory result. You are better off making certain the system functions properly by simply pulling the fault cods and rectifying any issues that may currently exist. The emissions equipment isn't hurting your performance... NOT having it working properly WILL!
Getting answers about codes, what they mean and what to do to correct a particular fault code is readily available both here and at Ford Fuel Injection

 

Technically, emission components are a federal issue.

Don't believe that just because your state or region doesn't inspect or test emissions that it is not required by law.

 

I recently replaced many sensors and it runs great now. Keep on rolling with the flow....who sang that?

 

My thought is that ignorance of a law isnt justification for breaking it. So it is all hypothetical if the person chooses to break it on how they would do so by removing the federally mandated equipment. Personally, I do not believe the computer controlled engines would benefit from the removal or if it was left in place. Carbed engines were a different story...

 

FWIW, the way the "wind" is blowing, I would expect more inspections in the future, like it or not.....

Also FWIW, there have been a number of posts here from members trying to deal with vehicles where the emissions equipment had been "removed".
Where to begin in some cases may have never been determined.

 

If you take a little time to understand how the sensors and equipment is integrated into the operation of these engines you will see how removing something causes issues across a multitude of parameters because each component affects a different set of them.

The simplest example is the EGR. Remove the EGR and block it off... results?

No signal or permanent "full closed" signal from the EVP computer throws a code. Problem 1: PCM assumes EGR valve completely closed which is not necessarily true depending upon engine temp and a host of other parameters. Running fully closed triggers Problem 2: PCM assumes failure and runs but limits every affected parameter until the code is cleared. Clearing the code does no good since the lack of EGR will trigger the code every time the truck is run.

Different amount of oxygen in the air mixture coming into the engine so the O2 sensor thinks the truck is running rich tells the PCM to lean out the fuel/air mixture until you are overheating spark plugs and shortening their life span by months even years.

PCM cannot compensate well enough for the lack of oxygen at idle because there is not sufficient airflow to keep the engine running properly so it will hunt idle speeds incessantly or simply fall on its face and die.

MAP sensor is getting lower than normal readings during warm up because of the idle issues causing constant variances in fuel/air mixture control which causes premature FPR failure.

Removing any of the other sensors mentioned to avoid these issues simply compounds the problem because each of them affect some other parameter that will in turn cause more problems.

And that is just part of what happens with one little part that does more good than harm gets taken off because someone doesn't understand how it works and assumes it either is hurting something or won't hurt anything to have it gone.