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Does Wrong Safc2 Settings Affect Tuning ?

Darren83

By Darren83,
in Engines & Forced Induction

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Darren83 Community Regular

Darren83

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hi guys, i just got a tune on my gtr using the safc. After two days of not starting up my car, today the car seems to struggle to start up during cold start.

I increased the airflow correction settings and this seem to help giving a more stable idle.

Doubting my tuner's settings, i ran through some settings and found out that the sensor numbers for the hotwire settings are 1 in and 1 out , instead its supposed to be 3in 3 out according to the manual.

Im just wondering with these different numerical values, does it affect the tune , such as giving wrong afr readings ? Do i need a retune ?

Thanks

QWK32 Veteran

QWK32

Posted
Posted

one of the settings will be as you say (the hot wire type), 3 in and 3 out, for you sensor type. and one of the settings will be for the afm signal. which car is it for? gtr will be 2 in and 1 out, for two afm in and one signal out to the ecu. and for single afm cars its just 1 in 1 out.

but im sure the setting your talking about is the hotwire one. so 3 in and 3 out. and yes, if these are changed it affects your cars performace.

Darren83 Community Regular

Darren83

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My car is a gtr , from what i have been told, as long as the sensor numbers are the same, it should be okay. Ie 3in 3 out, or 1in 1 out . However this might not be the case for the sensor calculation setting. But fortunately that is correctly setup before the tune.

The sensor numbers will only affect the tuning or performance , if the in and outs are dffierent. This is what was explained to me by my mechanic. Does any one knows about this ?

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