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  #11  
Old 08-02-2006, 02:25 AM
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Quote:
Originally Posted by SANguru
they do not. Coolant is not really emissions related. Check engine and SES are of the same on the E46. Alpac, I would still bring it in to get it checked. SES light goes on usually mean something. Just going out to reset it = bad idea.
CEL / SES doesn't = emissions component failure. If something is indeed wrong, it's a waiting game till the light is back on.
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  #12  
Old 08-02-2006, 02:56 AM
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how's that? every single code off the obdII port is emissions related among the most common, O2 sensor faults, MAF faults, cam angle sensors and the list goes on. Each one of those will affect a/f ratio spark AND ignition timing. Time to hit the books buddy and listen to OG HTtech guy.. u're slacking...

Quote:
Originally Posted by vinuneuro
CEL / SES doesn't = emissions component failure. If something is indeed wrong, it's a waiting game till the light is back on.
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  #13  
Old 08-02-2006, 03:22 AM
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All codes can be read from the OBII port and most are emissions related, but there are proprietary systems in more advanced engines that also use the CEL to output codes for failure of those systems...ie. secondary intake butterfly components, vtaack of course , etc.
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