WON'T PASS EMMISSIONS - Saab 900 Bulletin Board - Saabnet.com
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WON'T PASS EMMISSIONS
Posted by SAAB STORY MAN (more from SAAB STORY MAN) on Fri, 2 Feb 2001 16:16:13
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saab story/ runs lean &hot 86 900s/d/16twincam /ezk/ no turbo
this car has a new 82 degree thermosat, catolitic, temp sensor, ignition module, plugs/wires/cap/rotor, cleaned with fi in tank, fuel filter, o2 sensor, air filter, cooling fan works, diagnostics on bear400 show no defects/ no vacum leaks/ @26.5 timed at 14btc/ will retard to 11-12btc @2000rpm
but this baby still runs hot so as not to pass ma nox levels (set for 4.26) by releasing 8.86 the car does run fine for long distances at 65+ mph and gets 20 miles per gallon on high test 93+oct
how would one balance fuel injectors if possible
remember this 86 has no egr/vacum and the computer can not give error codes
ezk system
it is interesting to note that when the coolant/emmissions sensor is pulled it will run better until overnite cooling cycle will repeat by a varying rev when cold/stalls for first few minutes if left out of gear for a warm up of 2-5 minutes, if the mass air meter is unplugged the engine looses revs/ or stalls
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