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Got done with motor swap but idles crazy

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Old 10-29-2006, 09:19 PM
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Default Got done with motor swap but idles crazy

sup fellas

i just got done swapin a blown motor...in a 98 ex
blown motor was a 98 d16y8 auto
new motor is a 97 d16y8 manual

i used alternator, dist, throttle body from the old motor, oh yeah the auto tranny too...

the car idles crazy up and down from like 1000-3000 even after car warms up...
i dont know whats the problem!

one thing i notice was there is a big sensor thing ( i think its a iac sensor) but the old one didnt have one...but the wiring harness dont have anythng to hook up to it...

i heard you have problems when you swap a manual motor to auto? any advice would be useful!!

thanks
tony
Old 10-29-2006, 09:29 PM
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Default Re: Got done with motor swap but idles crazy (tony n.)

get a different tranny.....your using an auto tranny for a manual??
Old 10-29-2006, 09:42 PM
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Default Re: Got done with motor swap but idles crazy (DX94')

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DX94’ &raquo;</TD></TR><TR><TD CLASS="quote"> get a different tranny.....your using an auto tranny for a manual??</TD></TR></TABLE>

yeah but i want to keep it auto
Old 10-29-2006, 09:43 PM
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Default Re: Got done with motor swap but idles crazy (DX94')

Something doesn't ring right hearing auto trans on a manual engine.. maybe I'm too newbish tho.

Problem sounds like a vacuum problem...
Old 10-29-2006, 09:56 PM
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what ecu are you using (manual or auto)
Old 10-30-2006, 12:19 AM
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Default Re: Got done with motor swap but idles crazy (Cataclysmic)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cataclysmic &raquo;</TD></TR><TR><TD CLASS="quote">Something doesn't ring right hearing auto trans on a manual engine.. maybe I'm too newbish tho.

Problem sounds like a vacuum problem...</TD></TR></TABLE>

read the post noob. he has a automatic 98 d16y8. he blew it so he swapped in a manual d16y8. its the same engine.

did you use everything from the old motor. just swap the old intake maifold over. or if not, check to see if your tps sensor is calibrated and that the iac is hooked up
Old 10-30-2006, 06:25 AM
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Default Re: Got done with motor swap but idles crazy (fmrprojects)

im runnin same ecu i took everything from the auto motor on to the manual besides the intake manifold

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmrprojects &raquo;</TD></TR><TR><TD CLASS="quote">

read the post noob. he has a automatic 98 d16y8. he blew it so he swapped in a manual d16y8. its the same engine.

did you use everything from the old motor. just swap the old intake maifold over. or if not, check to see if your tps sensor is calibrated and that the iac is hooked up </TD></TR></TABLE>


yeah besides the manifold...tps sensor? wheres that at? the sensor on the new manifold...the one on the back of it...i dont have a plug to plug in...

the old motor dont have that thing on the intake manifold...for some reason... so i guess it doesnt have a plug on the harness

thanks for the help
Old 10-30-2006, 07:13 AM
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Default Re: Got done with motor swap but idles crazy (tony n.)

I dont know if anyone has mentioned this but the auto and manual intake manifold are very different. so swap the old manifold on the new motor if youre keeping it auto.
Old 10-30-2006, 07:14 AM
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Default Re: Got done with motor swap but idles crazy (tony n.)

insane
Old 11-09-2006, 03:20 PM
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Default Re: Got done with motor swap but idles crazy (tony n.)

the big sensor your talking about is a big problem. I have been through the same things. you have to either get a new harness for that motor or swap intake manifolds like in earlier posts. if u dont have that sensor hooked up it may cause wavy idle.
Old 11-09-2006, 03:20 PM
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Default Re: Got done with motor swap but idles crazy (tony n.)

the big sensor your talking about is a big problem. I have been through the same things. you have to either get a new harness for that motor or swap intake manifolds like in earlier posts. if u dont have that sensor hooked up it may cause wavy idle.
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