Idle Problem?

[Janiel]

Ok guys I just changed the motor in my LX-i And the idle surges up and down. What could it be? I got the car with the motor blown but I asked the previous owner and he had the same problem but never got it fixed. Thanx.

[anchovies]

Make sure there's no air in the cooling system. Bleed it again just to be sure. Another problem could be due to the fast idle valve. Spray some carb cleaner or tb cleaner into it and clean it out, you can also take it out so it's easier to clean and make sure the valve inside is not loose.

[Luis 89LXi]

I has the same problem when I get my car. We read the Ecu codes and the problem was a bad TPS, I changed and works fine.
You can try.

[njpeter]

and it turned out the idle was set way too high..symptoms..starts and fast idles well, soon as it comes off the fast idle it started pingponging between 1000-2500 rpm. worth a shot, as it's a freebee I'm planning on taging this car in april..which gives me about 10 weeks to finish the repairs I need to drive it

[xbi0s]

I had this same problem

It'd heat up for like a few minutes, then it'd idle

800rpm to 1500rpm


OVER and OVER and OVER

Had a slice in a vacuum tube... Check out the tubing you got.. I think I saw something in my honda manual about Vacuum tube #26... but yeah, New vacuum tube and it ran great

[Janiel]

I'am going to try vaccum hose #26 today and I'll let you know whats up.

[AccordEpicenter]

Any of you guys had problems with your vacuum control box? I think I may have a bad solenoid

[DBMaster]

OK, help me out here. The problem talked about here is similar to one I have been having. I wanted to check the vacuum hose angle, but the hose numbers only go up to 24.

What's the deal?

[Janiel]

Funny. Mine only goes to 24 too. Mybe it on the carb models. Hey bro i fixed it! do this-unplug the plug that goes to the sensor or what ever that is. Its the plug that is right behind the fuel injectors. I think its the Eacv. Try it and tell me if works.

[DBMaster]

I wish it were that simple! I eventually replaced the EACV and fast idle valve during my diagnosis phase.

Even the Honda dealer couldn't find anything wrong when I gave up and let them have a crack at it. My idle fluctuation is worst when the engine is hot (ambient temp above 80) and the car is coasting (like on an exit ramp or coasting to a stoplight).

I am starting to be convince that it has to do with a worn distributor. I guess I just put up with it until someone else with the same problem figures it out!

[DBMaster]

Well, also the reason I thought about checking for hose 26 is that xBIOs, the one who posted that, has an LXi, too.

[Janiel]

Yea but 86-87 were different from our 89's. They had more shit then ours.

[njpeter]

that any "red dust" inside the distributor means trouble..those buggers can run a few bucks ( specially for LX-i)

[Janiel]

Uh-Oh. My distributor is full of red dust. Whats that mean?

[njpeter]

the bearing is going (or gone) and that makes idle timing most unpredictable...I'm sure a timing light would be jumping all over the place.I just got my first FI accord last month..but I've been around 3g for a while and I'm pretty sure I read about it here. I read everything and try to only recall the important stuff.

I've not seen these for sale on ebay, the carbed distibutor is not the same..could be a wallet flattener. good luck

[Janiel]

Great. Now i have to buy distubutor. I am going to take a look at my friends dist. he is parting it out. Thanks for the help. :super:

[DBMaster]

Mine has had red dust in it for some time. The timing stays pretty solid. I am living with it until the problem gets worse!

[87DXHatch]

Mine revs too! I thought someone said before it was the idle control valve?

I'm pretty lucky though... mine ONLY does it when I start up the car for the first time of the day... but it's weird:

It only seems to happen when I have it parked in my yard, when the car has been sitting overnight at a slight angle forward. When I park overnight on flat ground, at my friend's house, it doesn't do it...

Input?

[danronian]

Originally posted by DBMaster
Mine has had red dust in it for some time. The timing stays pretty solid. I am living with it until the problem gets worse!

If in fact your bearing for the distributer is going, my accord came with a story about that. The previous owner worked at a honda dealer and said that a few months ago they got my car in as a broken down trade-in. He said that the bearing for the distributer seized, snapped the timing belt, and cracked the distributer case leaving the person stranded and willing to trade the car in. So im not sure if this is a fluke or not but i figured i would share anyway.

[ksdl89]

My 89 LX-i is doing the same idle fluctuation. It used to go away after a 10-15 min warm up, but now it's lasting a lot longer. No red dust in my distributor, I burped my cooling syst.,...I guess that leaves me with fast idle valve, or possibly idle solenoid? Problem is, my online manual doesn't show me where my idle solenoid is. Can someone tell me? Pictures are best, but I'll take a detailed description. Thanks.

[Janiel]

Clean the idle control/valve with carb cleaner and this should take care of the problem. Give it a try and come back and tell us what happen.

Janiel

[ksdl89]

Originally posted by Janiel
Clean the idle control/valve with carb cleaner and this should take care of the problem. Give it a try and come back and tell us what happen.

Janiel

On an 89 LX-i, where is the idle control valve?

[AZmike]

There's a picture in this thread:
https://www.3geez.com/showthread.php?s=&t...highlight=idle

a quick search can work wonders

[ksdl89]

My mistake...I mean, where's the idle control solenoid. I tried a search for it, but came up with nothing. On the LX-i, is it the same thing as the EACV?

[Janiel]

Yea its the Eacv. Its on the pleum. The wire that feeds it runs out of the ones that feed the fuel injectors.