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spkdtch2
Dodge Dakota
JOIN HERE
4/07/2008
18:53:28
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 Subject: engine light
IP: Logged
Message:
everytime i move the AIT sensor, i get the check engine light on, this time i checked the code n i got code P0455-"A large Evaporative Emission Control System leak has been detected."
the only thing i could think of, is that the plug i put in the intake to fill the hole where the sensor was, isnt tightened enough, but the light goes away even if i dont switch it back, any ideas?
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daddio
Dodge Dakota
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4/07/2008
21:40:33
| RE: engine light
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Message:
check the hoses on the charcoal canister in front of the fuel tank for cracks.
the plug you put in the manifold has nothing to do with that code.
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spkdtch2
Dodge Dakota
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4/07/2008
21:42:28
| RE: engine light
IP: Logged
Message:
it has to, the light only comes on when i move it back and forth from the intake manifold to my cold air intake, it happens everytime, and only when i change it, never at any other points
i dont get it, i know the code has to do with gas, but it only goes off when i move the sensor back and forth, no other times, and it goes away within a day
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daddio
Dodge Dakota
JOIN HERE
4/08/2008
08:36:56
| RE: engine light
IP: Logged
Message:
"it has to" UGH! i give up.
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spkdtch2
Dodge Dakota
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4/08/2008
10:30:28
| RE: engine light
IP: Logged
Message:
well i understand thats not normally what throws the code, but it only goes off when i move the sensor back and forth, only then, and everytime, which is why i asked here, because im stumped
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ftheabus
Dodge Dakota
JOIN HERE
4/08/2008
11:35:27
| RE: engine light
IP: Logged
Message:
Check to see if there is something else moving when you place the sensor in a different position. Like a wire harness, connector, something along those lines. Maybe when you are leaning into the engine you are hitting up against something. Daddio is right, one should have nothing to do with the other.
Try and fix the problem associated for the code like the charcoal cannister and its lines.
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spkdtch2
Dodge Dakota
JOIN HERE
4/08/2008
11:39:34
| RE: engine light
IP: Logged
Message:
im not saying hes wrong, i kno normally that answer would make sense, but it only goes off when i move the sensor, which is y i thought the hole in the intake b4 i plug it up could maybe be considered the big leak
it just puzzles me to no end, but i will still check everything else
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daddio
Dodge Dakota
JOIN HERE
4/08/2008
12:05:51
| RE: engine light
IP: Logged
Message:
P0455-"A large Evaporative Emission Control System leak has been detected."
evap system has nothing to do with the intake. do you have a manual? if you do read about the emission controls and you will find find the system works.
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spkdtch2
Dodge Dakota
JOIN HERE
4/08/2008
12:10:41
| RE: engine light
IP: Logged
Message:
ya im reading it right now, and i know it doesnt, but it only goes off when i move the sensor, which is why im so puzzled, then it goes away within a day, and doesnt go back on til i move it again
it just plain doesnt make sense
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spkdtch2
Dodge Dakota
JOIN HERE
4/08/2008
12:29:01
| RE: engine light
IP: Logged
Message:
from the haynes manual:
"1. The fuel evaporative emissions control (EVAP) system absorbs fuel vapors from the fuel tank and, during engine operation, releases them into the engine intake system where they mix with the incoming air/fuel mixture."
maybe i was right?
or maybe im not understanding that paragraph correctly, but it says right there, it releases them in2 the intake system
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daddio
Dodge Dakota
JOIN HERE
4/08/2008
13:34:38
| RE: engine light
IP: Logged
Message:
ok, if you're right how does the PCM know where the temp sensor is located?
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J and J Auto
GenII
4/10/2008
00:19:37
| RE: engine light
IP: Logged
Message:
The evap could be your gas cap
The IAT will set a code if it reads below 50
degrees
6" from throttle body no farther away this is the
best location
Larry
J&J Auto
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spkdtch2
Dodge Dakota
JOIN HERE
4/10/2008
08:57:40
| RE: engine light
IP: Logged
Message:
well the sensor is midway between the filter and the throttle body, more like 8-10 inches
and it was below 50degrees when i took the sensor out, so it was in the cold for a bit
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