Help with a RS-T....poor idle!!

[cris_barros]

Hi guys!!

My friend owns a MX-3 RS-T ... he is using a T25 and running 1Kg of boost (around 14psi..stock engine ), but the idle sucks!! The cars goes to 1200rpm and sometimes die (he's running with alcohol)..

Any advice?? It's seems to be a problem with the MAF...Is there anyway to fix it?

Thanks a lot!!

[rebel2k4]

Maybe an intake leak? Is the BOV sealed at idle or is it sucking in unmetered air?

Try running the ECU codes on it.

[Shady469]

i think i need some more info here... are you saying at idle it goes from 1200 to really low constantly or what? did you check/clean the idle air control valve? and why alcohol on a stock motor?

<small>[ June 07, 2004, 09:03 PM: Message edited by: Shady469 ]</small>

[cris_barros]

Thanks guys! Problem solved!!

They running the ECU codes...

The problem?? MAF (too much pressure..MAF can't support it)

The solution?? Fool the MAF (details soon! )

Thanks again!

[cris_barros]

ops..just to answer the questions:

Yep..the idle goes to 1200rpm to really low constantly....

Why alcohol?? It's really cheap around here; he'll be running big boost soon (14psi now...28psi in 6 months ..with forged internals!)...it's a better fuel for FI (low risk of detonation with the stock CR)...

[Chaos]

what octane level is that ?

[cris_barros]

Well...alcohol is a different fuel that needs a higher CR to work well (it's a "cool" fuel)...

The octane level would be around 110 !