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94 944 failed emissions, high nox--ideas on readings? regina system 900 1994

posted by  bcg on  Fri Aug 7 08:50 CST 2009
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last visit: Sun Jul 27 08:12 CST 2014
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hello keith,
thanks for your reply. forgot about this--i'll put the water sensor (ecu) and sender (gauge) on the meter.

i was afraid that an original rich mixture from a bad o2 or something may have buried the cat.

i went ahead and bought a cat from fcpgroton & an o2 sensor from amazon, an nkg 25003 direct fit for $109 + free shipping.

along with the new cat, is coming an intake manifold, just in case to replace something else.

also to note, the last 2 exhaust bolts in the head are sheared off, but i don't feel by hand anything leaking from the last exhaust port (by the firewall). so, i assume it's sealed.

regards,
byron






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