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EGR/NOX Control for 1984 BMW 325e

 
 
cjhsa
 
Reply Tue 3 Feb, 2004 10:11 am
My car, though it claims to have been sold meeting the requirements for the 1984 model year in California, cannot pass the NOX requirements implemented in Smogcheck 2. Problem is, NOX is typically reduced by the use of an EGR (emmission gas return) valve, but my mechanic cannot find one installed on the vehicle.

Should there be one? If not, what other technique might have been used on this engine to reduce NOX (oxides of Nitrogen).

Any help or even a link to a site full of mechanics would be appreciated.
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Type: Discussion • Score: 3 • Views: 1,684 • Replies: 7
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cjhsa
 
  1  
Reply Tue 3 Feb, 2004 03:34 pm
No mechanics here today?
0 Replies
 
Adrian
 
  1  
Reply Tue 3 Feb, 2004 04:23 pm
It has got one. If your mechanic can't find it, you need a new mechanic.
Those 'e series engines are the worst thing BMW ever made. They tried to make them efficient by making them burn lean. That's why your having emmision problems. Sorry I can't be of more help.
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cjhsa
 
  1  
Reply Tue 3 Feb, 2004 05:37 pm
Actually Adrian, I verified through a local BMW shop that the '84 325e series for the California market had no EGR equipment. So my mechanic was correct. I think you're right about the lean burning though. Thanks for the feedback.
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Adrian
 
  1  
Reply Tue 3 Feb, 2004 09:15 pm
That's quite strange. Australian spec' models do. California has much stricter emmissions reg's than here. Odd.
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cjhsa
 
  1  
Reply Wed 4 Feb, 2004 11:07 am
The whole thing sux.
0 Replies
 
cjhsa
 
  1  
Reply Tue 10 Feb, 2004 12:32 pm
Hey Adrian,

You were right, all the mech had to do was enrich the mixture and voila, it passed no problem. Just money and time. Pain in the ass is what it was.
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Adrian
 
  1  
Reply Tue 10 Feb, 2004 03:48 pm
Funny. Good luck with it.
0 Replies
 
 

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