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99 WGNC34 Stagea RB25DET NEO
Posted: Fri Oct 04, 2013 10:35 am
by SeriouR
i need to pass an emissions test on the above vehicle and am wondering if i install a nistune would it be difficult to tune it so there are minimal emissions? i will be replacing the catalytic to help with this. Im not worried if the car has low power (i will re-tune after test) just wondering if it can be done without damaging the motor.
Re: 99 WGNC34 Stagea RB25DET NEO
Posted: Sat Oct 05, 2013 9:47 am
by Matt
In theory there should be optimal emissions from factory. With a good O2 sensor and catylitic converter the ECU should be chasing stoich around idle and converting to H2O/Co2 accordingly
Nistune can adjust fueling and timing in your ECU but I wont think it will help your emissions much unless you are modifying the vehicle also
Re: 99 WGNC34 Stagea RB25DET NEO
Posted: Wed Oct 09, 2013 7:52 am
by SeriouR
What sort of modifications would help?
Re: 99 WGNC34 Stagea RB25DET NEO
Posted: Thu Oct 10, 2013 4:15 pm
by Matt
Help emisssions? None really!
Modifications for performance... upgraded exhaust, turbo, intercooler, injectors, MAF, fuel pump etc