How could this be possible?

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Shock_whore

New Member
Before 2nd O2 sensor and stock air box installed: (had a short ram intake)

Failed HC 1.4 >>>>> limit .6
Failed CO 16.8>>>>>limit 10.00
Passed NOx 1.03 >>>limit 1.5

After 2nd O2 sensor+stock airbox installed: (bastards won't test my car cuz of the short ram intake)

Failed HC 1.3
Failed CO 13.55
Failed NOx 2.08


HC and CO seem to dropped a bit, but NOx almost doubled.

Did research and the cause of failure for HC + CO is most likely because the car is running too RICH. Too advanced of a timing and ignition related.

NOx = High combustion temperature + running too LEAN

How could this be? Running too RICH + too LEAN @ the same time isn't possible... CAT should be working fine. Got it put in a couple months ago.

Anyone know where the EGR valve is located on a B16a2? Thanks!
 
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