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lude hesitating

 
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Old 03-25-2011, 12:36 AM
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lude hesitating

so i noticed that sometimes my car feels like its lagging/hesitating between the 2-3rpm. what may be the cause of this? its doesnt happen all the time but its starting to get annoying.

my guess is it might be flooded plugs since when i got my car its was too cold here in edmonton and the guy at the docks tried to start it by flooring the gas while turning it over. im going to check it this weekend but iwas just wondering if theres anything other than that that could cause this issue.

thanks guys
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Old 03-25-2011, 01:28 AM
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Re: lude hesitating

It could be a number of things, but I would start with a new o2 sensor. New plugs and wires. Then see where your at.
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Old 03-25-2011, 02:46 AM
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Re: lude hesitating

Mine did that too, it hasn't done it since I changed the 02 sensor, dizzy cap, rotor, spark plug wires, and spark plugs.
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Old 03-25-2011, 09:11 AM
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Re: lude hesitating

Before you throw cash at the problem, try cleaning your egr valve if it hasn't been done. Hesitation in the low rpm range is usually due to a clogged/sticking egr.
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Old 03-25-2011, 11:04 AM
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Re: lude hesitating

very possible its the egr, thats usualy caused by a clog or a misfire, any check engine lights? eliminate options, clean things first, start by the cheapest way possible then work your way up to the expensive things, take your egr off and start the car for 5 seconds , rev ur motor let the **** blow out, then clean your valve
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Old 03-25-2011, 09:28 PM
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Re: lude hesitating

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Originally Posted by Chrisludetec View Post
very possible its the egr, thats usualy caused by a clog or a misfire, any check engine lights? eliminate options, clean things first, start by the cheapest way possible then work your way up to the expensive things, take your egr off and start the car for 5 seconds , rev ur motor let the **** blow out, then clean your valve
Elaborate please! What are some cheap options to begin with? Also some detail on how to clean EGR valve? I've heard to taking it apart and cleaning off the carbon buildup but not revving the engine
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Old 03-25-2011, 11:44 PM
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Re: lude hesitating

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Originally Posted by viciousK View Post
Elaborate please! What are some cheap options to begin with? Also some detail on how to clean EGR valve? I've heard to taking it apart and cleaning off the carbon buildup but not revving the engine
take your egr off, spray the hell out of it with alcohol based brake cleaner (so the spray doesnt eat the seals or anything if your cleaning the IACV as well) scrape with a screw driver or something to take out the carbon, let it dry, buy a $2 egr gasket at autozone, and pull your 10 amp fuse under the hood for about 10 sec if u have any CEL's ... did this now my car runs brand new

enjoy
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Old 03-27-2011, 01:37 AM
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Re: lude hesitating

Mine used to do the same. I tried seafoam and its been good so far.

Im still going to check out my egr tho.
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Old 03-27-2011, 10:16 AM
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Re: lude hesitating

Cleaning the EGR? Why do you guys want to keep the EGR? I understand it saves a little on emmisions but cmon, the hp youre losing there is no fun. And your injecting carbon back into your engine, that makes a mess and those ports get clogged and it sucks dealing with that crap. I just make a block off and drilled a hole in the base of the egr valve that I tapped to put a bolt in. This way you put the plate between the gasket and EGR valve and the EGR still thinks it's working, so no CEL. And no more carbon injection. And when it comes time to pass emissions you just put the bolt into the tapped hole and remove the plate. Do your testing and reverse the operation. It's so easy and saves a big headache on cleaning those damn egr passages all the time!
BUT, if you insist on keeping the EGR and cleaning it all the time, try removing the valve and adding seafoam to the injection side port and letting it sit for awhile. Best to heat up the car good and hot then remove the valve and use a spray bottle to spray the seafoam into the port. Then let it sit for awhile before starting up again.
Or theres always the drilling and tapping of EGR ports themselves, which there are multiple posts on this site for.
Best of luck to ya, and hit me up if you have questions.
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Old 03-27-2011, 11:27 PM
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Re: lude hesitating

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Originally Posted by EchoSixKappa View Post
Cleaning the EGR? Why do you guys want to keep the EGR? I understand it saves a little on emmisions but cmon, the hp youre losing there is no fun.
Unproven to increase HP. If you understood how the EGR system works, you'd know better.

The only reason to delete the EGR is on highly modified cars where you have a standalone fuel management system to keep combustion chamber temps down while cruising at partial throttle, or need the space. If it isn't broken, don't f*ck with it.
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Old 03-28-2011, 12:16 AM
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Re: lude hesitating

His theory^
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Old 03-31-2011, 04:33 PM
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Re: lude hesitating

hes completely right, never heard of a HP increase
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Old 03-31-2011, 04:51 PM
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Re: lude hesitating

ya i have read alot of things that actually say ppl that think eliminating it increases hp are retards. although they are still a pain in the ass to clean all the time
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Old 03-31-2011, 06:46 PM
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Re: lude hesitating

My H22 has 200k miles... f*ck that EGR. If it works, it works. I don't mess with anything under the hood really anymore. I love my Prelude more than any other car I've driven, but I don't feel like creating a money pit or breaking sh!t lol. If I'm in there doing maintenance, chances are good I'll upgrade to something more performance oriented. I do plan on going with a Blacktrax manifold sometime in the near future though.
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Old 04-02-2011, 11:34 PM
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Re: lude hesitating

I had this exact problem with my 4th Gen H22A Prelude hesitating between 2&3k rpm. I cleaned the EGR valve this morning and it took care of the problem. I recommend you do the same.
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Old 04-03-2011, 12:37 AM
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Re: lude hesitating

happened as early as yesterday. i was witness to a hp conversation. this guy wants to buy some upgrades at a local store. get some headers, 15 more hp. new exhaust another 10, lose your ac and ps another 12 hp, chip for another 35 to 50 hp, cold air intake, 10-12 hp, etc etc etc. holy crap this guy was gonna take his cavalier and somehow get an extra 150 hp on about 1000 bucks of bolt on parts. never gets old
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