EGR bypass

[ladenblowfish]

Before I get a tune I was planning on bypassing my EGR. What all is involved? I have a 93 gen 1. Will there be much of a difference with it off than on?

 

[kustomizingkid]

Its not really a bypassing as much as just capping both ends of the system off and then haqving the tune shut the system off so you don't pop a CEL.

 

[XLRVIII]

Before I get a tune I was planning on bypassing my EGR. What all is involved? I have a 93 gen 1. Will there be much of a difference with it off than on?

no performance gain deleting EGR.

Also when you have a functioning EGR the car can tolerate more spark than if the egr is non functional.

deleting the egr just for the sake of deleting it, isn't worth the time, expense or the trouble for literally ZERO performance gain.

EGR is closed at WOT, so again.. no benifit in deleting it other than creating a "tuning nightmare" and potentially causing detonation in your motor.

If I were working via a "mail order tune".. I'd leave EGR alone.

IF you have the capability to adjust your tune yourself, then and ONLY then would I attempt an EGR delete.

"you've been warned".

 

[unity]

no performance gain deleting EGR.

Also when you have a functioning EGR the car can tolerate more spark than if the egr is non functional.

deleting the egr just for the sake of deleting it, isn't worth the time, expense or the trouble for literally ZERO performance gain.

EGR is closed at WOT, so again.. no benifit in deleting it other than creating a "tuning nightmare" and potentially causing detonation in your motor.

If I were working via a "mail order tune".. I'd leave EGR alone.

IF you have the capability to adjust your tune yourself, then and ONLY then would I attempt an EGR delete.

"you've been warned".

Agreed. On older vehicles EGR was a bit of a problem, but from my years of reading in the Mark forums the EGR is only a "problem" when it fails, otherwise it has no measurable effects on the engine. I dont have mine but it was a case of a new engine, intake, tune, etc....

 

[ladenblowfish]

Thanks for the heads up. She's gonna stay the way she is.

 

[turborich]

no performance gain deleting EGR.

Also when you have a functioning EGR the car can tolerate more spark than if the egr is non functional.

deleting the egr just for the sake of deleting it, isn't worth the time, expense or the trouble for literally ZERO performance gain.

EGR is closed at WOT, so again.. no benifit in deleting it other than creating a "tuning nightmare" and potentially causing detonation in your motor.

If I were working via a "mail order tune".. I'd leave EGR alone.

IF you have the capability to adjust your tune yourself, then and ONLY then would I attempt an EGR delete.

"you've been warned".

I agree! Very good info.