smog and egr delete

The egr does actually do stuff to make the engine more efficient. It helps with ping ( spark knock ). The resistor ( egr plug delete ) tricks the computer to think the egr is working.....therefore making it susceptible to ping under certain cruise conditions. You may not notice a difference. The computer strategy will add fuel to protect the engine from ping if it knows the egr is missing. It may also mess with the computer controlled timing ( haven't verified that ). Usually, driveability won't suffer with either of those removed.

A check engine light is just a bulb....take it out. It probably won't be hooked up to your rx7 dash anyway....if you want to be a cheap ricer about it.

The best way to tackle this is to replace the egr and drive with confidence. The smog stuff won't affect the car at all as long as you aren't using factory mustang catalytic converters. Car won't run rich and you'll get all available power.

snackman508 said:

ok so this have been discussed a lot with lots of differing opinions. here is my situation, Im swaping the 5.0 in a rx7. i pulled the egr and smog (plugged the holes in the heads and blocked off egr hole) off to make things simpler and they both needed replaced if i kept them. If i get the simulator plug will it shut off my smog codes as well all egr codes. are there other things i need to plug off or think about. ive heard people say it will run rich and others say the ecu will not be affected.

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