So I've got two questions for everyone with there preludes have you ever had a problem of after driving and puttin it into park that the idle starts to go up then drops back down an then repeats? And the second question is whats a good front upper strut bar and im on a budget so nothing outragisly priced please

Surging idle is usually related to an intake manifold leak and or an IACV (idle air control valve) malfunction. As for strut bar u can get a cheapo ebay one but it wont do what its designed for bc it has pivot points in it. Go to explicitspeedperformance.com and u can get them there in 2/3 point fronts. theyre like 150. BUT they're solid bars and will do what theyre there for. Keep ur sh1t stiff. Welcome to PZ

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pretty much what diamond said. I have an ESP bar, waited 15 weeksn for it, but it was definitely worth it. for $40 Megan isn't bad either, i felt a slight difference but ita jothing compared to my ESP. lower end, but kind of does the job. you can also look for the neuspeed strut bar. just remember too, 4th and 5th gen (only base not SH) suspension parts are all interchangeable

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Im having the same exact idle problem with mine right now after it wasnt running for like 4 or 5 months. I was kinda guessing the iacv also. I'll definitely be watching this thread to see if anybody else has anymore input.

lol it must be the weather because I've been seeing a lot of idle problems here lately throughout various honda boards. Mine is starting to act up as well and I literally just got done watching a video by eric the car guy (EricTheCarGuy) and he pretty much breaks down everything about idle in a honda engine. First thing to check-coolant levels/air in the coolant system. Second, check IACV to see if it is sticking. and third, check the Fast Idle Valve (FITV). I plan on doing these three things on monday when I'm back in class.
Good luck to you bro and welcome to PZ!

oh and another thing (not trying to be an ass) but do some in depth research before posting a new thread about a topic that has been covered hundreds of times, ESPECIALLY about idle. I've had idle problems since day one but I do not dare to ever post a thread about it lol.. just a friendly heads up. RESEARCH, RESEARCH, AND RESEARCH SOME MORE! It never hurts to learn something yourself..

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BB Squad #134 (V.2)
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Thats exactly why I didnt post one up. Lol. Ive been trying to find the answer myself.

haha yeah it's a smart thing not to do so.. but seriously look up eric the car guy if you are having problems he has some good info and he was a technician as far as i know so he knows his stuff.. i'm taking his advice as soon as i get the chance..

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BB Squad #134 (V.2)
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well thanks but i couldnt find any that sounded like my problem