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Message
Check Engine Light after Filling-Up
Posted on 5/17/21 at 11:22 am
Posted on 5/17/21 at 11:22 am
Anyone have an idea why a car's check engine light would repeatedly show after a fill-up, only to go away after burning roughly a quarter-tank of gas?
I've experienced this issue for a while, now. I've visited different gas stations and changed the fuel cap, to no avail...
The code is related to the oxygen sensor, but that's already been replaced.
We're talking about a 2013 Nissan Sentra, in this case.
I've experienced this issue for a while, now. I've visited different gas stations and changed the fuel cap, to no avail...
The code is related to the oxygen sensor, but that's already been replaced.
We're talking about a 2013 Nissan Sentra, in this case.
This post was edited on 5/17/21 at 11:30 am
22
Posted on 5/17/21 at 11:23 am to Hoodie
Probably your gas cap seal.
ETA never mind. Looks like you checked that.
ETA never mind. Looks like you checked that.
This post was edited on 5/17/21 at 11:25 am
Posted on 5/17/21 at 11:24 am to SUB
or are you filling up with the engine running?
Posted on 5/17/21 at 11:25 am to Hoodie
What's the code that it's throwing?
Buy an OBII scanner tool or take it to AutoZone or a Napa where they will pull it for free.
Buy an OBII scanner tool or take it to AutoZone or a Napa where they will pull it for free.
Posted on 5/17/21 at 11:26 am to Hoodie
Take off the gas cap and put back on. Will likely fix it.
Posted on 5/17/21 at 11:26 am to Hoodie
Probably your motherboard for the O2 sensors.
That or you didnt replace all of your O2 sensors with the last repair.
That or you didnt replace all of your O2 sensors with the last repair.
Posted on 5/17/21 at 11:26 am to Hoodie
What's the actual code? Some are for a sensor issue, other are for A/F out of range.
Posted on 5/17/21 at 11:26 am to ATOlurker
quote:
or are you filling up with the engine running?
No, sir. If the gas cap was the issue, perhaps I should disconnect the battery to clear the trouble code...
It's not a terrible bother, but my sticker's due, soon.
Posted on 5/17/21 at 11:26 am to Hoodie
gas cap is loose. Takes a few stop/start cycles to reset. Is there a missing gasket for the cap?
This post was edited on 5/17/21 at 11:27 am
Posted on 5/17/21 at 11:27 am to Hoodie
When you fill up, do you stop when it kicks off or do you keep squeezing the handle until it over flows?
Its a known issue that people that overflow their tank saturate the filter in the the neck of the tank.
Its a known issue that people that overflow their tank saturate the filter in the the neck of the tank.
This post was edited on 5/17/21 at 11:29 am
Posted on 5/17/21 at 11:28 am to billjamin
quote:
What's the actual code? Some are for a sensor issue, other are for A/F out of range.
It's P0420, if memory serves.
Posted on 5/17/21 at 11:28 am to Hoodie
Is it a GM truck? Had that issue on my mom's Traverse. I forget the part, but it was a sensor right on top of the engine that cost $30 and was easy to replace. It was caused by topping off the tank repeatedly.
Posted on 5/17/21 at 11:28 am to Hoodie
should add make, model, and year to the OP
Posted on 5/17/21 at 11:29 am to Hoodie
Can you post the make and model of the vehicle and the code that you're getting?
Cars have multiple O2 sensors.
Cars have multiple O2 sensors.
Posted on 5/17/21 at 11:29 am to Hoodie
EVAP sensors or EVAP canister is/are all bad
Posted on 5/17/21 at 11:30 am to Hoodie
quote:
P0420
That code could be hundreds of different things on most vehicles.
Posted on 5/17/21 at 11:30 am to Hoodie
quote:
It's P0420, if memory serves.
That's for the front O2 sensor and measures catalyst performance. Common when cars have off-road exhaust installed, a failed catalyst or shitty fuel that's not reacting properly.
Is it driving normally?
Posted on 5/17/21 at 11:30 am to arcalades
quote:
should add make, model, and year to the OP
Thanks; it's done (2013 Nissan Sentra).
Posted on 5/17/21 at 11:31 am to billjamin
quote:
Is it driving normally?
Oh, yeah.
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