Ohbebe75

I just recently blew a motor and had to put a new one in my 97' dx...once i got the motor in, it was throwing 3 check engine lights for iacv, tps, and 2nd o2 sensor...what i dont get is, the iacv and tps were working fine right before the swap, and is it normal for both to go out at the same time? or is there a possibility that i might have gotten some lines mixed up in reference to the iacv coolant lines? any help would be awesome. thankyou

ketchup214

im having the same exact problem... but my tps is not throwing a code no more it was tho. only the iavc n o2 is

yoffer

your coolant lines will not cause your CEL to come on. The coolant lines simply help warm your engine up faster. They have nothing to do with the operation of the IACV.

ketchup214

what would u think the cause of my idle surging up and down?

ctam1986

did you try to clean your IACV? hope it help

yoffer

Try cleaning it like the guy above me said to do. I do not think that it is a connection problem because its not throwing a CEL, (i would know because i had to replace my IACV).

highrev1987

are the two plugs switched around, IACV and TPS?

.PLUMMM

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ketchup214 &raquo;</TD></TR><TR><TD CLASS="quote">what would u think the cause of my idle surging up and down?</TD></TR></TABLE>

My idle did that before in my old integra. It was in part because my IACV wasen't bolted up all the way. You could also hear air humming from the intake manifold. Hope this helps

EL Vap133

Everything is connected?

darkclark

check your iacv plug for damage i had this problem when my iacv plug got damaged as soon as i replaced the plug the o2 cel went away also