egr deleteing

[ranger450]

I just did the 02 upper intake swap and i want to delete the egr and smog crap, is the any way to trick my ecm to beleive it is still there so i dont throw a check engine light (CEL)

 

[adsm08]

I want you to go do some research and learn why that is a retarded idea before doing any more work (up to and including putting air in your tires on your own) to you truck.

 

[ranger450]

Guess you dont know, anybody?

 

[adsm08]

Oh, I know. I won't tell selfish, uninformed jokes who want to do it just because they don't understand how the systems work.

EGR doesn't hurt performance, EVAP doesn't hurt performance, cats wont hurt unless you have done some serious work the the heads and intake, you don't have a belt driven AIR pump, which is about the only emissions device that will hurt performance/economy on a fuel injected engine.


Oh, also, your fuel injection and distributorless ignition would fall under the umbrella of "smog crap" that you want to get rid of, so by the time you install a distributor and carb all the more you should have to do to avoid the CEL is throw the light bulb in the trash.


Now, since you don't seem to understand how things work (I can tell, because if you did know you wouldn't have to ask the question), don't mess with the emissions control system.

 

[stmitch]

If the composite upper has egr stuff, and your engine has egr stuff, you might as well hook it up.
If your engine has egr, but the composite upper doesn't then the egr stuff can be removed from the engine and deleted from the PCM with a handheld tuner like an SCT xcal.

 

[BRUTUS_T_HOG]

Lol thats funny cause EGR increases fuel economy and EVAP keeps the fuel from leaving the tank.

Anyways NO you can't trick the PCM on a 99 unless you take an arc welder to the PCM case.

Pre-OBD2 you might be able to, but i'm not sure on that.

EDIT: if you are only worried about the CEL, then disable the bulb. Duh.

 

[ranger450]

Oh, I know. I won't tell selfish, uninformed jokes who want to do it just because they don't understand how the systems work.

EGR doesn't hurt performance, EVAP doesn't hurt performance, cats wont hurt unless you have done some serious work the the heads and intake, you don't have a belt driven AIR pump, which is about the only emissions device that will hurt performance/economy on a fuel injected engine.


Oh, also, your fuel injection and distributorless ignition would fall under the umbrella of "smog crap" that you want to get rid of, so by the time you install a distributor and carb all the more you should have to do to avoid the CEL is throw the light bulb in the trash.


Now, since you don't seem to understand how things work (I can tell, because if you did know you wouldn't have to ask the question), don't mess with the emissions control system.

Wow!!!! i thought everyone was cool on these sites...

 

[adsm08]

I'm cool about most things. The emissions controls are there for a reason, the system is designed to work with them in place, and they are effective and do far more good than harm. As a tech and someone with respiratory issues people like you who just want them gone because they cling to the outdated, ignorant, and no longer correct prejudices of the previous generation hits a real hot button with me.

 

[ranger450]

I'm cool about most things. The emissions controls are there for a reason, the system is designed to work with them in place, and they are effective and do far more good than harm. As a tech and someone with respiratory issues people like you who just want them gone because they cling to the outdated, ignorant, and no longer correct prejudices of the previous generation hits a real hot button with me.

I also I'm not a Obama fan and own a AR-15, country's screws with people like me.

 

[McCormack]

Lol thats funny cause EGR increases fuel economy....

Is that book learning, or have you actually run the same vehicle with and without an EGR and noted the difference in power and fuel mileage?

P.S. Yes, I have.

 

[BRUTUS_T_HOG]

Is that book learning, or have you actually run the same vehicle with and without an EGR and noted the difference in power and fuel mileage?

P.S. Yes, I have.

Well since a gas engine has a throttle plate there is high vacuum which makes it hard for air to efficiently enter the engine called "pumping losses"

What EGR does is allow an inert gas to take up some of the space in the cylinder so less burnable mixture can enter which causes less power yes, but what the engineers figured out is that under light load cruising conditions if they open up the EGR valve and cause less power the driver will push on the pedal more which opens the throttle plate and reduces pumping losses.

Plus under high load conditions and WOT the EGR is disabled by the PCM so it won't affect power.

I have run my truck without EGR and i wouldn't say i noticed a difference, then i fixed the system and got rid of the annoying CEL

 

[RonD]

The EGR system was added to reduce emissions.
But what was found to happen as an extra benefit is that engines got better performance with less fuel, you could run the engine leaner without pinging because exhaust gases helped to cool the cylinders.

The reason you are getting resistance in "removing the EGR system" is because it is only a benefit to have it, no downside.
There is also the big benefit in passing emission tests if your area does now or does in the future require that test.

I think a better thing would be to go with a higher horsepower carbuerated engine, made in the "pre-smog crap" days, I would still go for an electronic ignition though.

 

[Froggmann]

The composite uppers don't have EGR provisions, in 02' EGR was eliminated from the 3.0.

Ranger450--Did you get the FPR and vacuum lines figured out?

 

[adsm08]

If there is no provision for the EGR setup on the new manifold then he needs to get a non-EGR computer, which is what I did when I put an 89 engine in my truck (same issue). I swapped the cat and computer to match a factory non-EGR configuration.


Now since I don't have all these tiny differences from year to year memorized on engines that I don't work on every day (you know the last time I saw a 3.0 Ranger?) THAT little detail would have gotten a better response from me than "get rid of all the smog crap" which is what a dumb hick says.

 

[stmitch]

If the composite upper has egr stuff, and your engine has egr stuff, you might as well hook it up.
If your engine has egr, but the composite upper doesn't then the egr stuff can be removed from the engine and deleted from the PCM with a handheld tuner like an SCT xcal.

Like I already said, there's no reason for an OBDII truck to have to switch computers. The egr functions can be deleted from the PCM by a tuner.