My Rb Has Issues, Can U Help Me With One?

[Ruthr33]

Hey, got a question.

Say I'm slowing down and I'm gonna select a lower gear, if give it a boot full to match the revs with the lower gear it can hesitate or feel sluggish with the clutch in free reving.

I have a lightened flywheel aswell so it should respond to my commands quicker than stock.

Vacume leak?

Dirty afm?

Tune?

[scotty nm35]

What pump and injectors are you running?

I have seen many cases where the fuel pump flows more than the reg can, especially when the injectors are cut on decel. It can cause rich hesitation. Do you have a wideband fitted?

[Ruthr33]

Bosch 044 big boy

550cc denso

Turbo smart 300 fpr

[Ruthr33]

Techedge wideband

[scotty nm35]

What is the wideband reading when you back off? Does it go lean then rich? The turbosmart reg should be fine unless the fuel pressure is set high.

A lot of that light load tuning can be difficult to do on the dyno, if you have the software I would suggest having a play with the lower end of the map yourself if you are confident, or asking your tuner to clean it up a bit.

Also make sure o2 correction is enabled, so the ecu can self tune the light load areas. The fuel requirements can change constantly with the weather otherwise.

[Ruthr33]

Afr is lean when I back off, I'll check if it goes rich again,

Fuel press set at stock. 37.5 from memory.

The only tune I hav was road tuned via the internet. (I live in the desert)

I have all the tuning gear but inexperienced

The O2 was disabled and it run dog rich,

When I enabled it it cleared up a lot of problems

It's 14.7 in most cruise situations although it was around 16 straight after tune and then changed to 13.5