b16bej1

need help, i replaced my t-stat, fuel filter and pump. i have no engine lights. holding a rev higher than 2000 rpm it drops roughly around 1000 rpm. any help appreciated.

Libertariat

I'm not really following what you're asking, could you re-phrase that?

b16bej1

holding a rev at a stand still, the rpms go up and down almost like a vacuum leak, but my idle is fine. i have a 94 ej1 with a 97 b16b swap

Libertariat

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16bej1 &raquo;</TD></TR><TR><TD CLASS="quote">holding a rev at a stand still, the rpms go up and down almost like a vacuum leak, but my idle is fine. i have a 94 ej1 with a 97 b16b swap</TD></TR></TABLE>

Um, So i take it you checked for vacuum leaks?

Did you try the regulars? Fast Idle thermo valve, Throttle body, and Ide air control valve?

b16bej1

i cleaned my fitv and my iac, but i didn't swap throttle bodies yet. i'll try that tomorrow. i'll let you know how it goes. thanks for the help.

Libertariat

I wouldn't necessarily swap them, but I'd make sure to clean it out with carb cleaner.

b16bej1

oh, yeah i did that, i don't know what else to do

97Ej6mike

Are you sure you have the correct ECU?

b16bej1

before i had a jdm b16a swap and used the jdm ecu that came with the swap, unless the b16b parameters are different. but i sold my original d16z6 ecu and my ctr ecu (figured i didn't need a obd2 ecu).

1d10t

could be MAP.

97Ej6mike

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1d10t &raquo;</TD></TR><TR><TD CLASS="quote">could be MAP. </TD></TR></TABLE>

Possibly, ive had problems with the map before, related to the idle as well. So you are sure you arent getting any Check engine lights?

Libertariat

yes, if you're running a K&N filter it's probable that the oiled filter may have clogged up the sensor. Might want to check that out as well.