TBI EGR Block Off

[VileZambonie]

Did you read my post?

[Da67goatman]

I'm very confident my uncle can figure this out and school us all, but I'll try my $5 attempt and if I happen to blow the ecm, I'll put in my spare. 

[topp]

So much trouble to gain0.00001 HP by removing the EGR.

And removing it will REMOVE these BENEFITS:
Reduced throttling losses. The addition of inert exhaust gas into the intake system means that for a given power output, the throttle plate must be opened further, resulting in increased inlet manifold pressure and reduced throttling losses.
Reduced heat rejection. Lowered peak combustion temperatures not only reduces NOx formation, it also reduces the loss of thermal energy to combustion chamber surfaces, leaving more available for conversion to mechanical work during the expansion stroke.
Reduced chemical dissociation. The lower peak temperatures result in more of the released energy remaining as sensible energy near TDC, rather than being bound up (early in the expansion stroke) in the dissociation of combustion products. This effect is minor compared to the first two.
As well as Higher combustion chamber temps which lead to pinging...

[Da67goatman]

Let me know if I get too far out of line, but My 3/4 ton Suburban ain't no racecar, I am not doin it for the .000001 hp, but to the fact that I DRIVE my truck everywhere and I refuse to drop $100+ on stuff that will wear out and need replaced again and  again and again, and I have no money.  I guarantee that my uncle has a different way around it, I just have to talk to him.

But the most important reason I'm doing it is to stick it to all the old fashioned people that think everything has to be done the way it's always has been, rather than trying something new.  Those are the same people that want everything in a "kit" so they don't have to do as much "work" to enjoy it.

[VileZambonie]

Did any of you read this?

The ECM monitors EGR effectiveness by de-energizing the EGR control solenoid thereby shutting off vacuum to the EGR valve diaphragm, With the EGR valve closed, fuel integrator counts will be greater than they were during normal EGR operation. If the change is not within the calibrated window, a Code 32 will be set.

So what this means is when the ECM runs the test and the fuel integrator does not go up it will set the DTC. Fuel integrator is in today's terms short term fuel trim. If the ECM doesn't see a change in fuel trim when the EGR is applied during the test the code sets.

The system is very simple for this application. Did you run through the diagnostics I posted? I'm happy to walk you through the tests if you don't understand them.

[Da67goatman]

I didn't see any diagnostics.  Where were they?
Was it the 50 mph thing, vacuum, ect?