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> Check Engine - Loose Gas Cap...not
Ian32688
post Sep 26 2008, 11:21 AM
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ok so i got my car checked at autozone and they said it was most likely a loose gas cap....so i replaced the gas cap...unplugged battery for a while. the check engine light turned off. and about 24 hours later came back on. ideas? i have a feeling im gonna have to have a smoke test to diagnose it..
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pwee05
post Sep 26 2008, 03:05 PM
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Drives: 1996 Talon AWD. Built, but no longer drives: 1997 mitsubishi eclipse RS; 1990 Talon AWD; 1995 Talon AWD, 1997 Talon AWD. Seems like a pattern
if you are asking why your check engine light came on, it's because your ECU found a problem



what the hell is a smoke test?
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Ian32688
post Sep 26 2008, 04:32 PM
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QUOTE(pwee05 @ Sep 26 2008, 03:05 PM)
if you are asking why your check engine light came on, it's because your ECU found a problem
what the hell is a smoke test?
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i said autozone checked it and said the code matched 'major gas leak' or whatever but they said thats usually a loose gas cap. but its not. which means its leaking somewhere else, and a smoke test is when they run smoke through to see where it is leaking.
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dannwo1
post Sep 26 2008, 06:10 PM
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Well is your car leaking gas? Or acting different?
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greenydsm
post Sep 29 2008, 02:20 PM
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an evap code

mine has the same problem

i didnt get a smoke test and my check engine light has been on for eh about 2 years
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Ian32688
post Oct 2 2008, 05:39 PM
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haha but what i want to know. is should i get a smoke test to see if the problem is worth fixing. someone want to give me a small list of possibilities that could make a evap code come up? i know it can be any number of sensors
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jonbonazza
post Oct 2 2008, 05:43 PM
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QUOTE(Ian32688 @ Oct 2 2008, 06:39 PM)
haha but what i want to know. is should i get a smoke test to see if the problem is worth fixing. someone want to give me a small list of possibilities that could make a evap code come up? i know it can be any number of sensors
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Maybe I am just dumb, but WTF is a smoke test?
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greenydsm
post Oct 2 2008, 05:45 PM
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ok..
not to hard to understand dude

hook a smoke machine up to one of the EVAP's vacc lines

pump smoke into it to find where its leaking.
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jonbonazza
post Oct 2 2008, 05:47 PM
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Ah ok. well.. I have heard of that except, most people use an air compressor, rather than smoke. And Also, it is more commonly referred to as a Boost/vacuum leak test.
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Ian32688
post Oct 2 2008, 05:50 PM
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QUOTE(jonbonazza @ Oct 2 2008, 05:47 PM)
Ah ok. well.. I have heard of that except, most people use an air compressor, rather than smoke. And Also, it is more commonly referred to as a Boost/vacuum leak test.
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the 3 mechanics i know all called it a smoke test.

maybe to keep things on a more basic level for me haha
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xanderthedude
post Oct 9 2008, 07:06 PM
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I have the same code. I actually have 2. Ones says small leak and another says large. I was told by a family mechanic it's most likely my exhaust system. Its supposed to be cracked a good bit. I have never actually seen the cracks but I can smell the exhaust if I am stopped for a while.
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dannwo1
post Oct 9 2008, 10:31 PM
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QUOTE
Ian32688 Posted Oct 2 2008, 05:50 PM
  QUOTE(jonbonazza @ Oct 2 2008, 05:47 PM)
Ah ok. well.. I have heard of that except, most people use an air compressor, rather than smoke. And Also, it is more commonly referred to as a Boost/vacuum leak test.






the 3 mechanics i know all called it a smoke test.

maybe to keep things on a more basic level for me haha

I call it a gafframus bindle sepratory inhibition valve location test. Just to sound smart. :laughing: But another thing to do is to put baby powder or equivalent on a suspect leak and pressurise the system. The powder will blow off right where the leak is.
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jonbonazza
post Oct 10 2008, 09:20 AM
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QUOTE(dannwo1 @ Oct 9 2008, 11:31 PM)
I call it a gafframus bindle sepratory inhibition valve location test. Just to sound smart. :laughing:  But another thing to do is to put baby powder or equivalent on a suspect leak and pressurise the system. The powder will blow off right where the leak is.
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yea that is how I do it, except I use soapy water instead of powder. it bubles up around the leaks. Just mix soap and water in a spray bottle nad spray everything down. lol
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xanderthedude
post Oct 10 2008, 11:48 PM
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^
Thats what i figured would be done. I have used the same technique on tires to find leaks.
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waynerwats
post Oct 11 2008, 04:01 AM
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Here is a thread in the 3g forum. Maybe it is your problem.

http://www.mitsubishi-forums.com/t41268-tr...m-part-help.htm
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