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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / October 2006Nox Emissions - 94 Geo prizm 1.8L
Hey guys! I'm having a problem with my NOx emissions. The readings are as follows HC - 0.05g/mile CO - 0.2 g/mile NOx - 2.09g/mile The car ( 94 Geo prizm 1.8L) has only 84k miles on it. >From the readings, it seems my CO is extremely low, since the max limit is about 90 times higher than what I'm emitting. What do you think the problem might be? Too lean? Thanks a lot in advance! <YaminH101@gmail.com> wrote: (94 Geo prizm 1.8L 84k) Hey guys! I'm having a problem with my NOx emissions. HC - 0.05g/mile CO - 0.2 g/mile NOx - 2.09g/mile My CO is extremely low, since the max limit is about 90 times higher than what I'm emitting. What could be the problem? _________________________________________________ There is no problem with the CO if it is only 1/90th of the limit . There is no problem with the NOx unless it exceeds some limit. There is no problem with the HC unless it exceeds some limit. So there is no problem. Rodan. Sorry, just to clarify, the NOx limit is 1.99g/mile. So my car is over the limit, thus the questions. :-) Thanks again! > Hey guys! > I'm having a problem with my NOx emissions. The readings are as [quoted text clipped - 11 lines] > > Thanks a lot in advance! > Hey guys! > I'm having a problem with my NOx emissions. The readings are as [quoted text clipped - 11 lines] > > Thanks a lot in advance! Your EGR valve is clogged or more likely your EGR passages are clogged. Ted |
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