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Also on an '86 16V turbo in Portland oregon >>
Posted by BobD (more from BobD) on Sun, 30 Sep 2012 10:31:19
In Reply to: 900T CA SMOG saga continues, ryan
[Profile/Gallery]
, Sat, 29 Sep 2012 19:31:22
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After numerous checks and double checks we added a resistor to the temp sensor in the head that reads temp as car warms up and reduces 'richness' of fuel mix from 'cold start' to prescribed mix for emisions.
I don't remember what amount of resistance worked, but it wasn't much.
Have you checked the resistance at the temp sensor at full operating temp ? Ours checked to be correct, but NOX was still too great.
Resistance added enrichens mix and gets cat to run at higher temp I think.
Have you checked temp at cat ? I believe that even with a new cat the temp needs to reach a certain point to get full 'reductions'.
posted by 72.160.97...
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No, mounting is very different driver, passenger. and, BobD, Sun, 30 Sep 2012 10:12:17
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