EGR
Senior Member
Joined: Nov 2001
Posts: 1,622
From: LA, USA
Originally Posted by sleeperRX7' date='Oct 9 2002, 01:05 PM
how well does a 2nd gen run without the egr on? say i take it off and put on a block off plate for it? i get really bored around here 
besides i wanna paint my intake manifold anyways :twisted:
C
Senior Member
Joined: Nov 2001
Posts: 1,622
From: LA, USA
Originally Posted by Baldy' date='Oct 10 2002, 11:45 AM
Man, I love not having to do inspections. If they did that here, half the cars would be off the road.
Senior Member
Joined: Oct 2001
Posts: 10,906
From: Peoria, AZ
Originally Posted by alton316' date='Oct 9 2002, 10:07 AM
[quote name='1Revvin7' date='Oct 9 2002, 12:40 PM'][quote name='alton316' date='Oct 9 2002, 12:22 AM'][quote name='dac' date='Oct 9 2002, 04:36 AM']Hopefully it's just the valve isn't working and the path isn't clogged with carbon. Before you go through all the work, connect the EGR vacuum line to a hand pump (or good vac source on your manifold). It the EGR valve is working it will cause your motor to stall as it lets exhaust into the combustion chamber (not good for performance, but it reduces emissions on deceleration and actually reduces combustion chamber temps).
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
actually it passed the visual inspection, passed the emissions test,
passed everything except EGR (functional).
the results for the idle emission test were:
HC (PPM) measured 30, the max allowed is 120.
CO (%) measured 0.04, the max allowed is 1.00.
so you can see the emmisions are well withen passing range.
i will try to located a used EGR valve, then when i get ready to change
it maybe someone can walk me through the prosses .
thanks.[/quote]
i had a feeling it wouldn't make u fail. There is somone on the other forum selling a new one for $120. Put it probably still works just clogged, mine was so clogged when i took it off.[/quote]
No maybe you misunderstood It did make me fail.[/quote]
U just failed because it doesn't work, what i meant was it doesn't cause your car to pollute. but how did they test it?
Senior Member
Joined: May 2002
Posts: 22,465
From: California
Originally Posted by alton316' date='Oct 12 2002, 02:29 PM
I dont know how they tested it, does anyone know of any addetivies that
i can put in they might help clean out some of the carbon?
If so maybe i can give it a try before i tear it apart.
i can put in they might help clean out some of the carbon?
If so maybe i can give it a try before i tear it apart.
mike
Senior Member
Joined: Oct 2001
Posts: 790
From: Portland, OR
Originally Posted by alton316' date='Oct 12 2002, 10:29 PM
I dont know how they tested it, does anyone know of any addetivies that
i can put in they might help clean out some of the carbon?
If so maybe i can give it a try before i tear it apart.
i can put in they might help clean out some of the carbon?
If so maybe i can give it a try before i tear it apart.
I never have understood the Mazda EGR, because it is on TOP of the motor. So I'm not sure where it gets it's Exhaust from to feed into the intake.
FROM THE NET:
EGR has been successful in reducing NOx in gasoline engines. When an engine uses EGR, a percentage of the exhaust gases are drawn or forced back into the intake, at the direction of the engine's electronic control module (ECM), and mixed with the fresh air and fuel the engine is ingesting.
The purpose of using EGR is to lower the peak flame temperatures inside the combustion chamber. Forcing some exhaust back into the cylinder slightly reduces the concentration of oxygen and slows the burning a bit, making things a little cooler. EGR also absorbs heat, further cooling the process.