Well I installed Pacesetter LT's on my car last week and I was wondering if the EGR will still function if I don't remove the EGR valve and soleonoid? The only thing I removed from the EGR was the tube from the back of the intake that ran into the stock manifold. I blocked that off and left everything else in there. I remember Injuneer commenting that there is really no reason to remove the EGR so I didn't know if it was still functioning.

Oh also, since I no longer have AIR, I removed the relay to keep the pump from functioning since I haven't had it deleted out of the car. Is this ok?

 

On the AIR pump, you don't need to remove the relay. In fact, removing the relay will guarantee you a code. To eliminate AIR pump operation without a code (OBD-I only), all you do is unplug the harness connector from the side of the AIR pump, and make sure the fuse and the relay are good.

If you no longer have the exhaust gas riser tube running from the #8 primary to the back of the intake manifold, your EGR system will no longer function. The PCM will still try to operate the EGR valve, by pulse width modulating the EGR solenoid/vacuum, and the EGR valve pintle will still move open when its supposed to. But there is no exhaust gas present at the EGR pintle.

You should probably at least inactivate the EGR valve, so that it doesn't possible develop a leak around the pintle shaft. Simply remove the vacuum line from the manifold to the solenoid, or from the solenoid to the EGR valve, and cap the end of whatever you disconnect.

As long as the solenoid has the harness connector attached, the PCM will not set a code for the solenoid circuit. You may get a code for the inoperative EGR system, but the OBD-I diagnostic does not seem as sensitive as the OBD-II diagnostic, and most of the time you don't get a code in OBD-I. It is possible though, and you would have to have the diagnostic programmed out of the PCM to get rid of the SES light.