Proper EGR delete

Discussion of tuning specific to CX-7 vehicles
Post Reply
paraplan
Posts: 1
Joined: February 12th, 2017, 3:28 am

Proper EGR delete

Post by paraplan »

I'm looking to delete EGR from my 2007 Mazda CX-7. However I'm not satisfied with just physically deleting the EGR and masking the CEL code, I want a real delete with proper ECU re-tune that restores the MPGs and deals with lean mixtures. Does anyone have a map for this or know how to do it?
Thanks!
mituc
VersaTuner guru
Posts: 1324
Joined: December 17th, 2011, 2:47 pm
Location: Iasi/Romania

Re: Proper EGR delete

Post by mituc »

Deleting the EGR will simply affect the fuel economy just because the chemistry going on inside the engine will be different.
To counteract this you can increase the closed loop timing but it may not work as well as if you had the EGR.
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071 gen2, ~509BHP @34PSI
2008 Icy Blue Mazda CX7
Stock engine and exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 330-ish BHP
User avatar
Steve @ VersaTune
Lead tuner
Posts: 1157
Joined: March 29th, 2010, 12:58 pm

Re: Proper EGR delete

Post by Steve @ VersaTune »

The only benefit of EGR delete is a cleaner intake. EGR generally increases low load cruising fuel economy.
Post Reply