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HELP JUST BOUGHT

 
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Old 04-20-2016, 12:25 AM
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HELP JUST BOUGHT

So I just bought a 1989 Prelude Si and I love it other than the problems I am having.

First problem is that it has two vacuum lines disconnected and when I connect them it begins to idle rough doing the high-low bounce.

Second problem is that I have a check engine light on and want to get to the bottom of it.

Third is that I want to get emissions done on it but it has an exhaust leak so I was wondering if I patch it, will it work for now or will the engine code make it fail?

Sorry if these are dumb questions but I just barely got it and haven't found the answers yet.
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Old 04-20-2016, 02:22 AM
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Re: HELP JUST BOUGHT

First things first...congrats on your lude, and welcome to the forum.

I would tackle the CEL first, then go from there. You can check the trouble codes yourself. Read this write-up on how to check the trouble codes...
ECU Error Codes

Your car is OBD0, in case you weren't sure.
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Old 04-20-2016, 12:03 PM
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Re: HELP JUST BOUGHT

Ok, what is the CEL?
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Old 04-20-2016, 12:07 PM
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Re: HELP JUST BOUGHT

Also that website only shows how to read 6 different codes, what if it is code 14 then how would I see it?
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Old 04-20-2016, 02:31 PM
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Re: HELP JUST BOUGHT

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Originally Posted by KiowaThomas View Post
Ok, what is the CEL?
CEL = Check Engine Light. The ECU stores trouble codes until it's reset (disconnecting battery or pulling the clock fuse) even if the light isn't on anymore.

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Originally Posted by KiowaThomas View Post
Also that website only shows how to read 6 different codes, what if it is code 14 then how would I see it?
Not sure what you're saying. That link shows all of the possible trouble codes for 3rd gen Preludes. And there are more than six of them even for the carb'd model which has the fewest. Did you scroll down to where the actual codes are described, or did you just look at the first couple of pictures?
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Old 04-20-2016, 07:52 PM
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Re: HELP JUST BOUGHT

Go to Prelude 3g and download a service manual.
Vaccum lines are shown along with another million billion helpful items.
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Old 04-21-2016, 09:40 PM
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Re: HELP JUST BOUGHT

Quote:
Originally Posted by luzer View Post
CEL = Check Engine Light. The ECU stores trouble codes until it's reset (disconnecting battery or pulling the clock fuse) even if the light isn't on anymore.



Not sure what you're saying. That link shows all of the possible trouble codes for 3rd gen Preludes. And there are more than six of them even for the carb'd model which has the fewest. Did you scroll down to where the actual codes are described, or did you just look at the first couple of pictures?
Yes it shows a ton of codes but only shows you how to read 6 also I did reset the ecu and when I started it again after five seconds it popped back up.
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Old 04-22-2016, 01:59 PM
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Re: HELP JUST BOUGHT

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Originally Posted by KiowaThomas View Post
Yes it shows a ton of codes but only shows you how to read 6 also I did reset the ecu and when I started it again after five seconds it popped back up.
You can figure out how to read all of the codes given the 6 examples that are provided. For instance, a code 14 would be one long blilnk followed by four short blinks, with a slight pause between the long blink and the first short blink. If you have multiple codes stored, you'll have to look for the longer pauses between the blinks to determine when one code ends and the next begins. It's explained pretty well in that link. I'm not sure how it could be explained any more clearly.
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Old 04-23-2016, 12:49 AM
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Re: HELP JUST BOUGHT

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Originally Posted by luzer View Post
You can figure out how to read all of the codes given the 6 examples that are provided. For instance, a code 14 would be one long blilnk followed by four short blinks, with a slight pause between the long blink and the first short blink. If you have multiple codes stored, you'll have to look for the longer pauses between the blinks to determine when one code ends and the next begins. It's explained pretty well in that link. I'm not sure how it could be explained any more clearly.
So I figured it out and it is just rapid blinks, no long one. I have code 9, 12, and 17. Thank you though, I just had to see it in action to really understand it. Also is there a website where it specializes in aftermarket parts like tail lights and stuff like that because I can only find oem tail lights.
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Old 04-23-2016, 09:11 PM
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Re: HELP JUST BOUGHT

Is it a 2.0 Si or is it an Si? The 2.0 Si is OBD0 and the Si is OBD1. Both are fuel injected. Since you mentioned there are no long blinks and you are seeing those codes, it must be a 2.0Si and have a b20a5, not a b21a1.
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