MAVA needs help with a P0455 "gas cap code" or "flashing reserve fuel light"
My beater 98 S500 runs like a champ, but I'm finally addressing the "flashing reserve fuel light" which leads to a check engine light as I cannot pass the Union of Kalifornia Emissions test with a check engine light, and my problem is wayyyyy deeeeepeerrr than the "gas cap"
I'm am trying to find a drawing showing the plumbing of the fuel tank as the problem is a passive problem, and I am so glad I have two of these cars..
On my working 96 S320 (with battery disconnected), I can hear the "swooosh" sound when I remove the fuel cap outside the car, and five to ten minutes later I can get the swoooosh again by removing the gas cap on the non moving(battery disconnected ) S320 laying in 80 to 90 degree sun, so what gives with the S500 :frown
A) I have checked my engine vacuum plumbing on the S500, and all is okay...
B) MOT Electric valve works electrically, and while energized the vacuum MOT check valve works. The plumbing on the MOT is nice and cinched-up.
C) The Charcoal Canister Purge valve is working great. When energized it blocks the release of the off-gassing of the Charcoal Canister, yet I would think the logic operation of this Purge valve would be reversed per what I encountered on the S320.
D) I removed the charcoal canister for any ruptures, or cracks, and I even blew into the big nipple where the purge valve attaches, and no leaks :crying
While doing all of this I replaced the one-time use hose clamp, and used a reusable hose clamp...
E) Yea, I did the swap of the gas cap with my E320, no change, no swooosh :crying. My S320 is not near me, so drove to it yesterday, and swapped gas caps and waited 15 or so minutes. The S320 did the swooosh, and the S500 Nothing :crying
F) The last item per the list is the "Pressure sensor/ fuel gauge sending unit" I swap the S500 sending unit with the S320, and S320 to the S500... I get the swooosh on the S320(15 minutes later) :crying:crying (I was hoping that was it), and on the S500 I get nothing(15 minutes later) :crying
Back to square one as I cannot see the fault. The tanks are not rusty visually, so like in the beginning I like to see if the tank has any other lines other than the bottom feed to the fuel pump and the fuel neck..
All of this does not matter if the car is on, and the battery disconnected....
Helpppppp...
Thank you,
Martin
My beater 98 S500 runs like a champ, but I'm finally addressing the "flashing reserve fuel light" which leads to a check engine light as I cannot pass the Union of Kalifornia Emissions test with a check engine light, and my problem is wayyyyy deeeeepeerrr than the "gas cap"
I'm am trying to find a drawing showing the plumbing of the fuel tank as the problem is a passive problem, and I am so glad I have two of these cars..
On my working 96 S320 (with battery disconnected), I can hear the "swooosh" sound when I remove the fuel cap outside the car, and five to ten minutes later I can get the swoooosh again by removing the gas cap on the non moving(battery disconnected ) S320 laying in 80 to 90 degree sun, so what gives with the S500 :frown
A) I have checked my engine vacuum plumbing on the S500, and all is okay...
B) MOT Electric valve works electrically, and while energized the vacuum MOT check valve works. The plumbing on the MOT is nice and cinched-up.
C) The Charcoal Canister Purge valve is working great. When energized it blocks the release of the off-gassing of the Charcoal Canister, yet I would think the logic operation of this Purge valve would be reversed per what I encountered on the S320.
D) I removed the charcoal canister for any ruptures, or cracks, and I even blew into the big nipple where the purge valve attaches, and no leaks :crying
While doing all of this I replaced the one-time use hose clamp, and used a reusable hose clamp...
E) Yea, I did the swap of the gas cap with my E320, no change, no swooosh :crying. My S320 is not near me, so drove to it yesterday, and swapped gas caps and waited 15 or so minutes. The S320 did the swooosh, and the S500 Nothing :crying
F) The last item per the list is the "Pressure sensor/ fuel gauge sending unit" I swap the S500 sending unit with the S320, and S320 to the S500... I get the swooosh on the S320(15 minutes later) :crying:crying (I was hoping that was it), and on the S500 I get nothing(15 minutes later) :crying
Back to square one as I cannot see the fault. The tanks are not rusty visually, so like in the beginning I like to see if the tank has any other lines other than the bottom feed to the fuel pump and the fuel neck..
All of this does not matter if the car is on, and the battery disconnected....
Helpppppp...
Thank you,
Martin