Start up when cold engine and high rpm.

[Suba_GL_87]

Howdy Northernwestern !

My car are ea82 f.i.

I have been annoy when I start up when cold engine and reach to 2000rpm and I have to alittle fighting on the gas pedal to became normal ideling when the engine warm.

It's annoy when I start up and leave the warm up but still there high rpm and waste the fuel also loud idling which is I don't like.

 

I was put 50/50 coolant into the engine. But I know that this coolant make a hard to get warmer engine effect to high rpm?

Or hose, PVC, EGR or what.

Thanks.

Edited January 23, 2014 by Suba_GL_87

[ruparts]

hi,

  i have had the same thing with my fi suby,  i did an experiment to try and cure the high rpm cold starts.  the hose that goes from that thing on the water outlet to the rubber intake boot, the aux air valve hose,  about 1/2 inch diameter,,  i took it off and found a short  piece of hose that would slip inside and could not get pulled through to cause any problems, it has about a 1/4" maybe even 3/16" inner diameter .  basically i made a restrictor that i put inside the aux air hose,   so far it has been beautiful, around 1200 rpm cold starts, no unexpected problems, warm up is just as always ,  just no 2200 - 2500 rpm cold starts!

[l75eya]

hi,

i have had the same thing with my fi suby, i did an experiment to try and cure the high rpm cold starts. the hose that goes from that thing on the water outlet to the rubber intake boot, the aux air valve hose, about 1/2 inch diameter,, i took it off and found a short piece of hose that would slip inside and could not get pulled through to cause any problems, it has about a 1/4" maybe even 3/16" inner diameter . basically i made a restrictor that i put inside the aux air hose, so far it has been beautiful, around 1200 rpm cold starts, no unexpected problems, warm up is just as always , just no 2200 - 2500 rpm cold starts!

 

Those rpms are bullseye accurate for spfi. Cold starts are around 2200 2500 rpms and when fully warmed up will automatically kick down to around 1k. If you like you can kick it down yourself before it's warmed up but it'll still be at around 1500 until it's warm.