hi there can any one help me i have a 300zx twin turbo fairlady and shes running doudle emissions and the garages dont knw why is there any one who can help me

hi there can any one help me i have a 300zx twin turbo fairlady and shes running doudle emissions and the garages dont knw why is there any one who can help me

 

could be the O2 sensors mate

the only trouble is would tht show up on the ecu

anyone near you that got conzult/datascan and dont mind having a look?

 

dan.:)

cheers mate

Due to the way the ecu works with both stored and live data it takes some doing for the emmisions to be so far out, even if you had something like blocked air filters or failed o2 sensors the ecu still continues to relearn and will always return to base settings when getting sensor failure warnings.

 

Of course do not overlook air filters and the O2 sensor but I would also look at the air flow meter in particular and timing, along with throttle balance and base idle settings.

 

As said previous a CoZult diagnostic is the next step and with an operator who knows how to use it the problem will soon be found.

 

 

Jeff TT

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