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Old 02-15-2010, 11:53 AM   #124 (permalink)
Daox
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Quote:
Originally Posted by tasdrouille View Post
Won't your MAP think more air just went in and the ECU would adjust the fueling accordingly? Your o2 sensor would pick it up though, setting the record straight trimming the fuel, but maybe that would throw a MAP fault code.
That is quite possible. We'll just have to see if it does or not. I have no idea how much fuel trim I have available to play with.



Quote:
Originally Posted by tasdrouille View Post
Here's an interesting article on EGR control strategies.
Good article. Its good to see the OEMs are using EGR the same way I am thinking of using it. It just makes me wonder how much headroom I have to play with before I start running into problems.

Obviously, I'll be a bit more aggressive with using EGR than they are. However, I still see myself running into the same two limits as I posted earlier in the thread:
1) EGR diluting the mixture so much that it causes misfires.
2) EGR making the intake too hot and causing pinging.

#2 is being addressed by using the EGR cooler though. So, I think #1 is going to be the main problem.
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Last edited by Daox; 02-15-2010 at 12:22 PM..
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