well i start my car every morning and everyday i look down and my idles at 250 pisses me off so much . well the weird thing is the more heated up the car is the higher idle i have like operating temp it will idle at like 1250 but cold it is still at like 250 i dont get it well im looking 4 any ideas and my setup is d15b2 with mpfi swap and si cam cai header and basicly stock exhaust

 

maybe your fast idle thermo valve is messed up, i might have the name wrong, but there would be that, that controls the idle before its warm, and then after it warms, the iacv takes over.

 

I had a similar problem. I replaced the IACV, and it fixed it.

but, also check your FITV. Make sure all the pieces inside are all screwed together. They ahve a tendency to work loose over the years.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr_CRX &raquo;</TD></TR><TR><TD CLASS="quote">I had a similar problem. I replaced the IACV, and it fixed it.

but, also check your FITV. Make sure all the pieces inside are all screwed together. They ahve a tendency to work loose over the years.</TD></TR></TABLE>



Bad IACV or not plugged in. Might have the wrong plug on there since there is one extra when doing a dpfi-mpfi swap.

 

i dont have a fast idle sensor and those wires are just cut off i just thought of this but what if i solder them together could that make it a more even idle or by a resistor type thing well any other idea are apretiated