Question: ERG Sensor

[Nick90vetteguy]

So I'm looking to eliminate my air injection system, I have the ERG sensor in the back side of the manifold just below my one intake runner. I apologize if numerous people ask this question but I just had to make sure.

Can I plug the hole in the manifold with a plug? and will I need to drill a hole in the exhaust manifold for the other end of the ERG sensor?(If I have to keep it)

 

[boomdriver]

So I'm looking to eliminate my air injection system, I have the ERG sensor in the back side of the manifold just below my one intake runner. I apologize if numerous people ask this question but I just had to make sure.

Can I plug the hole in the manifold with a plug? and will I need to drill a hole in the exhaust manifold for the other end of the ERG sensor?(If I have to keep it)

are you talking about the EGR tube from ex manifold to the intake?
if so, just plug that or use a bolt on cap. The EGR thermo switch can come out and be plugged.

 

[vetteoz]

So I'm looking to eliminate my air injection system, I have the ERG sensor in the back side of the manifold

EGR is seperate system to air injection

90 should not have a EGR temp sensor ; was only used on earlier MAF cars.
Where exactly is this sensor.
You should only have the EGR valve itself under plenum and a EGR control solenoid

There are block off kits available with plates to seal intake and exh manifold if you remove the crossover pipe from exh manifold

Early Vette EGR temp sensor

 

[Hib Halverson]

Do not disable or remove EGR hardware unless you recalibrate the ECM. The spark curve with EGR is much more aggressive than an engine without EGR would have and, thus, the engine will detonate at part throttle.

 

[boomdriver]

Do not disable or remove EGR hardware unless you recalibrate the ECM. The spark curve with EGR is much more aggressive than an engine without EGR would have and, thus, the engine will detonate at part throttle.

I personally do not understand why anyone would want to remove the EGR system from a street car. Too many folks do not understand what it does, and tend to believe some voodoo BS that it robs lots of power or limits performance...none of which is true.
The ONLY thing that EGR really does, it keeps the engine from knocking itself to death and breaking pistons during hi-load situations with lots of spark advance. The only thing that the driver can do to avoid this when he removes the EGR is to either run with retarded timing (reduced performance) or let off the gas everytime as severe knock starts. Egr manages all that for you without chopping the power off.
Between EGR and ESC these engines can run an aggressive spark advance and generate lots more power and not scatter the delicate aluminum pistons all over the countryside.

 

[GRAND SPORT #12]

boomdriver is correct egr all about keeping down NOX and lol not the nocks on the door

 

[Nick90vetteguy]

EGR is seperate system to air injection

90 should not have a EGR temp sensor ; was only used on earlier MAF cars.
Where exactly is this sensor.
You should only have the EGR valve itself under plenum and a EGR control solenoid

There are block off kits available with plates to seal intake and exh manifold if you remove the crossover pipe from exh manifold

Early Vette EGR temp sensor

Oh ok, what about that aluminum foil wrapping around a pipe that starts from the intake manifold to the header? In your picture its located below the arrow, your right I dont have a sensor I labeled it a EGR sensor i dont know why i didnt know what it was so i just assumed ;squint:

 

[vetteoz]

what about that aluminum foil wrapping around a pipe

Is only insulation because crossover pipe is at exh gas temperature ( hot ) when EGR is operating

 

[Marv02]

Getting ride of the Service Engine Soon Problem

I getting a new chip burned for my new motor I get the EGR system deleted so I will have no more Service Engine Soon light any more.

 

[Nick90vetteguy]

Oh ok, well I took that pipe out its just a 1/4 hole(in the manifold), can I plug that up?

 

[vetteoz]

I took that pipe out its just a 1/4 hole(in the manifold), can I plug that up?

So long as the pipe off the exh manifold is sealed