need some info on a/f readings

[smoke187]

this is what i get for a/f readings on my aem widebad 30-4100 with no tuning stock vaf gtx ecu gtx injectors stock fuel pump stock lx fpr



10-11.5 cold start in the morning it runs really rich
14-15 warmed up at idle
14-15 driving off boost
11-12 at 10psi
when coasting in gear the gauge reads nothing is that normal?


are them numbers about right?

[therieldeal]

sounds about right to me. the ECU is aiming for 14.7:1 at idle and cruise, based on the reading from the stock oxygen sensor. off throttle it cuts fuel to conserve gas and increase engine braking.

[Lex]

looks spot on to me.

[smoke187]

thanks,

ok so when i go to install the rx7 vaf i want to tune it to be around the same place it is now at idle?

[bcowie]

thanks,

ok so when i go to install the rx7 vaf i want to tune it to be around the same place it is now at idle?

Yes I actually just did that today myself.

[ghaze24]

Should I be concerned that I'm off the gauge lean at idle? The rest of the time everything is spot on.

[IvarR]

Nope. On idle it can be lean. Its ok
IvarR