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egr and ads superchip

Rmeistad

New member
Joined
Aug 21, 2021
Messages
1
Location
wisconsin
Corvette
91 350 tpi
my egr isnt working in my 91 350 tpi. I get pinging when it shifts into overdrive. I unhooked the egr solenoid and never thru me a ses code 32. I opened up the bottom of computer and there a ads superchip installed
Would that be why the egr isnt working and what's my next step to fix it.
 

GWinter

Well-known member
Joined
Oct 2, 2005
Messages
70
Location
NW Iowa
Corvette
1990 conv. 6sp
I am no expert but the EGR is important and really don't effect performance . If it were mine I would try to find out if the chip disabled the EGR if it does I would get a diff chip that doesn't disable it . I would think even a used factory chip would be better than not having the EGR work . Keep in mind this is one opinion.
 

DRC

New member
Joined
Jun 27, 2021
Messages
4
Location
Arizona
Corvette
2021 C8 2LT Ceramic Matrix Gray Metallic
The only place the EGR might be important is in cold weather, otherwise it’s a waisted part.
The tuner turned it off, tuners do this for a good reason.
Pretty much all you can do is try to get a tune that doesn’t mess with the EGR if your that persistent to have it functioning.
With it unplugged are you still having issues?
I’ve deleted a few EGR’s on a couple of vehicles, one is now residing in NY,(sold) the other I still have.
EGR’s will cause performance issues if they are not working 100%.
 

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