Question about 1992 Mitsubishi 3000GT
I would google vehicle exhaust gases & do some studying
Given it is a 1992-- 22 year old vehicle & don't know how old
the motor is !
159 is HC & a lot of unburnt fuel
NO may be an egr issue along with overheating
Best study the gases & what is required to address them
You could go with the spark plugs,wires,synthetic oil, new air filter,
check out the egr system,pcv system & vacuum leaks,thermostat,
oxygen sensor,clean maf sensor
I'm NOT saying throw parts at it,I'm saying check it out & do some
testing, to find some problems
You have to take out a lot of fuel & bring down your misfire counts,
engine temp etc
I would guess after your best efforts ,you need to replace the
exhaust converter,I would, unless it is only 5 years old or newer
Posted on Apr 02, 2014
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Posted on Jan 02, 2017
SOURCE: smog test fail
you need to add the codes on the vir or if the check engine light is on what codes do you have?
and always inlcude the engine size for your car
many people does question here but most of they are not ading the right information like what kind of engine and like that is hard to help
Posted on May 29, 2008
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