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possible wire shorting?

 
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Old 05-27-2012, 12:26 PM
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Icon5 possible wire shorting?

so just reporting on some more problems with my lude.... first i think that there's some kind of wire shorting going on because every once and a while the "break lamp" light will come on... which it is on the dash indicating that the rear brake light is out... and it only comes on probably every other time i start it up so i'm only assuming i'll have to pull the dash apart to know for sure and also check engine light comes on after about 15 minutes of driving i'm only assuming its a misfire but i can't check it because the light doesn't stay on so if i turn the ignition off and back on the light goes out so i can't pull the code??? so there it is if anybody has had any similar problems or has any ideas of stuff i could try to diagnose these problems much appreciated thanks!
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Old 05-27-2012, 01:09 PM
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Re: possible wire shorting?

Your brake light problem could be a corroded bulb socket. Pull your bulbs out and clean the sockets real well. I had this exact problem a couple years ago and cleaning the sockets fixed the problem.

The ecu should store the codes even if the cel goes out. Pull up the small flap on the passenger side floorboard and count the LED blinks. Here is a link to how to read the codes and the location of the LED...
ECU Error Codes
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Old 05-27-2012, 02:12 PM
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Re: possible wire shorting?

awesome thanks i'll try your suggestion and on the cel i was reading the thread about the cel and i found the little plug in under the hood to do the same thing as the place under the floor board do you know if that is like doing exactly same thing to get the blinking lights or is it different??
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Old 05-27-2012, 06:36 PM
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Re: possible wire shorting?

You don't need to do anything with the plug to read the trouble codes. Just turn the key to the on position and look under the flap to count the blinks. Simple. If you use that plug you can read the trouble codes by counting the number of times the cel blinks. It does the same thing as the LED under the flap.
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Old 05-27-2012, 11:45 PM
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Re: possible wire shorting?

In addition to luzer's advice (he's like QuickDraw McGraw) if the socket is the problem, go to a car parts store and get "Di-electric grease", and with a Q-tip use the grease to break up the rust, clean with the dry side of the swab and use a little grease in the socket, place bulb back in.

Also good for other electrical connections that get dried out, like your head lights, spark plug wires and fuse boxes.
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Old 05-28-2012, 11:58 PM
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Re: possible wire shorting?

hey thanks guys if you may ask how long have you been prelude enthusiasts? you have seem to have been into this stuff a while. and i really appreciate your input just to show how terrible my knowledge is.... I went to and graduated top of my class at UTI and I felt like when i graduated i learned a lot but now I just feel kinda dumb lol
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Old 05-29-2012, 12:15 AM
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Re: possible wire shorting?

I bought my first 3rd gen in 2006 (89 Prelude S). Before that I mostly owned domestic cars, mostly GM stuff. One of the first things I had to do was to get all of the tail light bulbs to work right.

And x2 about the dielectric grease. I didn't use it to clean the sockets but I did use it after I cleaned them to help keep the corrosion from coming back.

BTW, when was the timing belt replaced on your lude? If you don't know when it was you should just plan to do that right away. These are interference engines and you don't want to have to rebuild the head if the belt breaks or slips. And welcome to the forum
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Old 05-29-2012, 12:32 AM
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Re: possible wire shorting?

The irony is, IM GM camp now and had my preludes back in 04-06. I however broke my mechanic "cherry" on my 3rd gen. Nissan camp, Celica supra, Jeeps, and I want another Honda dammit, just no space. A formal education is good, specific make/model knowledge is why forums exist. Glad we could help you out!


Post pics please!
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SURGEON GENERAL WARNING:
THE IMITATION OF ANY OR ALL MANEUVERS EXECUTED BY A BA B20A 4WS PRELUDE IS HAZARDOUS TO YOUR CAR'S HEALTH. DRIVING A PRELUDE MAY CAUSE LOSS OF INTEREST IN OTHER CARS, WOMEN AND SPEED LIMITS. OTHER SYMPTOMS INCLUDE SLEEPLESS NIGHTS, COLD SWEATS AND OTHER SYMPTOMS RELATED TO ADDICTION. IF THE SYMPTOMS PERSIST,DRIVE!
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Old 05-31-2012, 01:06 AM
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Re: possible wire shorting?

thanks a lot guys really appreciate it... as far as the timing belt goes it does look like its been changed i've had the valve cover off a couple times and it looks in good shape... i've been checking out parts on majestic honda website and the only thing that i can't find and it says they have it but don't list it is the hold down for the battery, (the top part that goes across the top of the battery) i haven't been able to find it and i really need it cause the ones they have at autozone and such places aren't as universal as they say.. so if you guys have any reliable places online to shop from that would be cool
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Old 05-31-2012, 05:09 PM
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Re: possible wire shorting?

I was told that you can't get them from Honda anymore so you're gonna have to grab a used one somewhere if you can't get one of the "universal" brackets to work. I look for those every time I hit the junkyard. I've only ever found one that was worth taking. All the others were rusted more than the one I was wanting to replace.

I buy most of my Honda parts from Honda Parts at Honda Parts Now | Genuine OEM Honda Auto Parts. They seem to have better prices than Majestic Honda.
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Old 06-02-2012, 09:15 PM
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Re: possible wire shorting?

Ok cool so this is a little off topic but since you guys are replying to me here then I'll just go ahead and post it here....... I just got my car smogged and I'm not sure if you guys are in Cali but if you are then you know the pain of smog tests but anyways so I failed miserably and one of the main reasons is my nox is way off the charts so I check the egr and there's no vacuum going to it and my ac is stuck in default mode(no vacuum as well) and my cruise control doesn't work so it's all pointing to this vacuum control box and I've already been told these things are notorious for going bad but I want your guys opinion and your now sagw advice lol so if you guys have had this problem before or if you know about it then awesome thanks so much as usual
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Old 06-02-2012, 10:15 PM
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Re: possible wire shorting?

Um, anodized vacuum box on eBay? I never had the problem (complete silicon hose swap for vaccuum lines) and I'm not sure which box you are referring to. Is it near the firewall or somewhere else?

I would recommend looking into seafoam to clear up the Gunk, if it is clogged. NOX emissions are taking cars off the road all the time in Cali. Perfectly good cars too. You don't have a shop that passes classic cars? It's 20-something years old.
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SURGEON GENERAL WARNING:
THE IMITATION OF ANY OR ALL MANEUVERS EXECUTED BY A BA B20A 4WS PRELUDE IS HAZARDOUS TO YOUR CAR'S HEALTH. DRIVING A PRELUDE MAY CAUSE LOSS OF INTEREST IN OTHER CARS, WOMEN AND SPEED LIMITS. OTHER SYMPTOMS INCLUDE SLEEPLESS NIGHTS, COLD SWEATS AND OTHER SYMPTOMS RELATED TO ADDICTION. IF THE SYMPTOMS PERSIST,DRIVE!
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Old 06-02-2012, 10:19 PM
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Re: possible wire shorting?

Sorry, I don't have to deal with emissions. Are you talking about the vacuum canister?
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Old 06-04-2012, 12:06 PM
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Re: possible wire shorting?

yeah its a little box its on the firewall but it's right on top of everything i'm not sure if every model came with it or if it was just ones released in cali but if you have cruise control and ac all that stuff is run off of vacuum so you might have it also.

but anyway yea its on the firewall pretty close to the throttle body and the canister and a bunch of stuff is directly underneath it, the classic car thing passing smog is well if you don't bribe a guy to pass you for about 200 bucks its not gonna happen... i think the car has to have been made in the 60's or else it doesn't matter now that its over 20 years old lol
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Old 06-29-2012, 04:39 AM
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Re: possible wire shorting?

thanks

Last edited by Davidleswell; 04-02-2015 at 04:33 AM. Reason: opps spelling.
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Old 06-29-2012, 06:21 AM
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Re: possible wire shorting?

If you havent solved your problem perhaps, as I had a similar problem with my 93 prelude, the 'brake lamp' came on randomly it'd stay on sometimes and others just be off, i eventually just changed the bulbs and it never came back on, i also found there was i crack where the rain was coming through in the tail light and got that fixed.
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Old 06-29-2012, 10:14 AM
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Re: possible wire shorting?

correction
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