gsrweener1

ok when my 93 hatch with a gsr b18c1 is at idle it constantly goes from 1000 rpms to 1500 up and down up and down but drives fine .. why does it idle like that?i want it to stop... it has type r cams but they dont make it idle like that.
and how do i make it run less rich?

BAN HAMMER

maybe your TPS is bad? I believe you have to get it tuned for it not to run rich.

gsrweener1

tps? i was hoping it just needs a tune ima order hondata on friday hopfully

greencoug

throttle position sensor. Could be messed up and giving your computer false readings, making it constantly adjust the idle.

UrGrlGveMeDkBrn

Any codes, have you cleaned the iac and is your gsr motor a obd1 or what?

gsrweener1

i know its from japann idk if that helps? where would i get a tps? i guess id just order it from a part store for a acura integra?

jdmperspective

it could be your eacv. Electrical air control valve. or maybe your tps.

gsrweener1

im pretty sure it be a sensor i dont think it be the one n the gas tank .. would advance auto be ale to check codes? loke since the ecu and stuff isnt for a honda civic?

jhholloway

yes, if you order the tps for an integra. they are all the same, I believe. it's the black oval one on the TB. you will have to cut a slot in the two headless bolts (i forgot the technical name) and use a screw driver to get it off.
Are you throwing any codes (CELs)?
what ecu are you using? at least do you know obd1 or 2? - the wires that come through the fire wall, are those running straight into your ecu or is there a jumper wire. it also has the part number on the ecu that would be really helpful.

your problem deff sounds like a sensor. I have a em1 si that did this and it was the IAC. that's right next to the TPS on the back of the IM. So just unbolt it and clean it.
One last thought, how the o2 sensor. those can confuse ecu like none other.
Good luck figuring this out!

Fabrik8

A TPS problem will make it run poorly over a much bigger range of load/RPM range, not just at idle.