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Help with a RS-T....poor idle!!
Posted: June 7th, 2004, 10:12 am
by 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!!
Re: Help with a RS-T....poor idle!!
Posted: June 7th, 2004, 1:25 pm
by 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.
Re: Help with a RS-T....poor idle!!
Posted: June 7th, 2004, 10:02 pm
by 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>
Re: Help with a RS-T....poor idle!!
Posted: June 8th, 2004, 12:13 am
by 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!
Re: Help with a RS-T....poor idle!!
Posted: June 8th, 2004, 12:19 am
by 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)...
Re: Help with a RS-T....poor idle!!
Posted: June 8th, 2004, 8:34 pm
by Chaos
what octane level is that ?
Re: Help with a RS-T....poor idle!!
Posted: June 9th, 2004, 10:16 am
by 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 !