TwinTurbo.NET: Nissan 300ZX forum - What have you done for tune up?
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Subject What have you done for tune up?
     
Posted by Cjw3 on April 14, 2015 at 6:53 AM
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In Reply To 555 injectors and Z1 chip, can't pass emission test posted by AL on April 13, 2015 at 08:27 PM
     
Message I'm presently playing with an NA and California Idle Smog..
I've found T-Body Balance is a BIG issue..

Is the ECU in idle Mode?.. Check by seeing if the Timing is at 15 Deg

Use ECU Talk to View the Left/Right O2 Sensor Sig.. Knowing that the Left T-body controls the Right O2 ( And Versa Visa ) Add air to the O2 Sensor to drop the Voltage..

I'd Start by closing the T-Bodies all the way then try and get your idle to stay at 700 by adjusting the IAC and then balance out the O2 Sigs..

I was able to get a 80-160 ( Wandering ) HC Idle on my NA.. 100 is passing, but I did not smog it because it was too close..

I'm adjusting a few Idle ECU values then taking the car back to see where it is..

Cj

     
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