k so my car is a 92 GS with a second generation B16A swapped into it, the garage that sold it to me did the swap not me. I bought it before winter hit and the idle never hunted at all then as soon as winter hit it started hunting all the time, and now winter is on its way out and its still hunting. I’ve tried everything to try and fix it. I’ve gone through this list http://www.g2ic.com/forums/showthread.php?t=42969&highlight=idle+step the best i could and its still hunting. i also did this http://www.g2ic.com/tegtips/engine/10.html last night and its still hunting. my ground cables are 4 gauge aswell by the way.
[b]VIDEOS:
http://youtube.com/watch?v=FswFPfwQWpk
k so that video is just the car idling at normal operating temperatures and me and a friend just tapping the gas and watching the idle hunt, so you can see how bad it hunts.
http://youtube.com/watch?v=FNq0edeXHRo
that video was me driving while filming my tach so you can see how bad it hunts while i’m driving, every time u see the RPMs drop down and i’m not shifting i just threw down the clutch pedal and i’m sitting there coasting without touching the gas or the brakes and u see it hunt. it seems to hunt about 200 rpm higher then while idling, also sometimes i have seen it jump up to 2100 but i unfourtunately didn’t catch that on film but it does do it quite often.
the sound is a bit off on both videos but you get the idea…[/b]
I have cleaned the FITV and IACV as best as i could, i had them both completely off the car and cleaned them with throttle body cleaner and tightened down the FITV white cap as tight as it could go and i also cleaned the area around and as far into the intake manifold as i could before putting them back on.
now going back to this list http://www.g2ic.com/forums/showthread.php?t=42969&highlight=idle+step
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I have checked my vacuum lines myself from atop the car and from underneath it the best i can using a diagram from mitchell on demand5 i didn’t find any bad hoses but then again i’m not a mechanic and i’m not a pro at it. my pcv valve is fine.
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yes my throttle plate is closed all the way…
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yeah i checked these nuts and they’re all good and tight
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haven’t bleed my coolant but if there is air in the lines and thats whats causing the hunt wouldn’t it stop after they’ve cycled through once? or would it continue and continue. i dont’ think this is it though because as i said my car didnt’ hunt before winter but ever since winter hit it has and i didn’t bleed the coolant or anything during that time the only thing i did was add to it once in awhile. could something have gotten screwed up here when i was working on the IACV and FITV and had the coolant lines on? i know i put them back on the right places but could air have gotten in?
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as stated before already did this…
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as stated before already did this…
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i did test this but i dont’ remember the results i’ll have to do it again and post back here…
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haven’t done this yet
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um definitely dont’ ahve the money to spend for a new ecu…
i have also had the car running and sprayed throttle body cleaner around the engine bay to see if the engine would rev therefore finding my vacuum leak but this revealed no results. and today i also tried this with compressed air, still no results…
so at this point i’m thinking about taking it into my mechanic and asking them to try to fix it and see what they come up with.
what do you guys thing i should do?
and if anyone can point me to where i can find a good vacuum diagram of a b16a in an integra without it costing me money then please do so.
and one more thing my car has an AEM fuel pressure regulator if that matters at all…