Repeating CEL
Thread Starter
Registered User
Joined: Sep 2009
Posts: 48
From: Los Gatos,CA
Car Info: 2005 Subaru STI
Repeating CEL
ive had this 05 sti for 1k miles and the cel came on i took it back to the dealer where i bought even though the warranty had expired and they said it was a gas cap code and cleared it. it came back on even though the next time i tightened the sh** out of it cleared cel myself by unpluggin battery .. cleared tightened cap and came back on. i cleared it again and it hasnt come back on but if does what should i do? any body have a similar problem that they could share some advice? i like to mention that the last 2 times it happened i was gettin on it and a few mins later i would look down at dash at it was on. Any advice fellow subies?
Churro Aficionado
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From: IG - @thomas.teammoist
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What was the CEL code?
It could be the seal inside the gas cap, they do go bad.
There is also a hose in the engine bay that, if its disconnected, could throw a cel code for the gas cap.
It could be the seal inside the gas cap, they do go bad.
There is also a hose in the engine bay that, if its disconnected, could throw a cel code for the gas cap.
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From: Participating in some Anarchy!
Car Info: 2005 LGT wagon
Replace the gas cap.
DTC P0457 EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (FUEL CAP LOOSE/OFF)
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Fuel odor
Fuel filler cap is loose or not installed.
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Fuel odor
Fuel filler cap is loose or not installed.
Thread Starter
Registered User
Joined: Sep 2009
Posts: 48
From: Los Gatos,CA
Car Info: 2005 Subaru STI
what is the definition of a driving cycle ? just start driving somewhere and stopping? its been 3 days now and i fueled up aswell and still no light, but like i said i been crankin the sh** out of the cap.
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From: brentwood CA
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have you messed with the fuel assembly at all lately? tried to change the fuel filter, or fuel pump? I was throwing the same code and mine was because it didnt sit right on top of the fuel tank. I had the same code forever now. I took mine to EQ tuning and they got me in and out within an hour
Thread Starter
Registered User
Joined: Sep 2009
Posts: 48
From: Los Gatos,CA
Car Info: 2005 Subaru STI
No havent messed with anything only thing i did was fuel up , i apy attention to the way i put cap back on too , on 4th day now w/o it comin on thats the longest stretch since things started hopefully it stays this way and i dont have to go to subaru and get robbed..
Thread Starter
Registered User
Joined: Sep 2009
Posts: 48
From: Los Gatos,CA
Car Info: 2005 Subaru STI
well its the 5th day and it came back P0457 so im going to dealer tomorrow, looked at seal it dosent look to bad .. is the seal all that matters ? or does the cap vent and maybe its not vent properly?
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Car Info: 2005 LGT wagon
If you're gonna go to the dealer, just buy a new gas cap.
If that doesn't fix the problem, it's elsewhere...like the purge control solenoid(cheap fix) of the fuel tank pressure sensor(****ing expensive fix).
If that doesn't fix the problem, it's elsewhere...like the purge control solenoid(cheap fix) of the fuel tank pressure sensor(****ing expensive fix).