2000StreetRod
Moderator Emeritus
- Joined
- May 26, 2009
- Messages
- 10,597
- Reaction score
- 334
- City, State
- Greenville, SC
- Year, Model & Trim Level
- 00 Sport FI, 03 Ltd V8
AFR meter?
Do you have an AFR meter? If so, then you should see the AFR cycling back and forth from slightly rich to slightly lean at idle and when at a constant vehicle speed on level terrain. That's an indication that the PCM is in closed loop.
I agree with Carguy3J that EGR is a good thing - lower maximum combustion chamber temperatures and improved fuel economy. But I also dislike the buildup left in the intake system from the exhaust gases. I wish I could purchase or build a compact, effective particle trap for EGR. Perhaps the buildup on the M90 rotors will replace their worn coating and increase my boost.
Do you have an AFR meter? If so, then you should see the AFR cycling back and forth from slightly rich to slightly lean at idle and when at a constant vehicle speed on level terrain. That's an indication that the PCM is in closed loop.
I agree with Carguy3J that EGR is a good thing - lower maximum combustion chamber temperatures and improved fuel economy. But I also dislike the buildup left in the intake system from the exhaust gases. I wish I could purchase or build a compact, effective particle trap for EGR. Perhaps the buildup on the M90 rotors will replace their worn coating and increase my boost.