[Nickchr99]

HELP! 02 rsx base k20A3
The car keeps throwing the same evap code (p1457) I’ve replaced the canister itself, the shut off vent valve on the canister, I replaced the evap by pass solenoid that’s on the other side of the canister, I replaced the purge valve on the throttle body, IACV, gas cap, and im still getting this evap leak code.
…also got the ECM checked and everything is good there

 

[Nickchr99]

HELP! 02 rsx base k20A3
The car keeps throwing the same evap code (p1457) I’ve replaced the canister itself, the shut off vent valve on the canister, I replaced the evap by pass solenoid that’s on the other side of the canister, I replaced the purge valve on the throttle body, IACV, gas cap, and im still getting this evap leak code.
…also got the ECM checked and everything is good there

 

[02RSXS]

Since you mention gas cap, have you inspected your gas filler neck, in-tank fuel pump, and gas tank for any leaks?

 

[02RSXS]

Double post...

Since you mention gas cap, have you inspected your gas filler neck, in-tank fuel pump, and gas tank for any leaks?

 

[Nickchr99]

Since you mention gas cap, have you inspected your gas filler neck, in-tank fuel pump, and gas tank for any leaks?

I have not, I’ve replaced the fuel pump itself because of a fuel smell but fixed that right away and the have not smelled fuel since then. I’ll check the fuller neck today but would I smell fuel if that was the case ?

 

[02RSXS]

You might, most likely when fueling the car.

Best bet may be to run a smoke test. I saw a post in the TLX forum where they took their car in for a TSB and afterwards it started throwing errors related to EVAP system leak. The first solution attempted was to replace the filler neck and it was taken back a few times because the issue kept reappearing. Once they reminded their service rep that it all started after that TSB they ran a smoke test and found it coming out around the fuel pump locking ring. Turns out they had twisted the O-ring for the pump.

If you're not able to do a smoke test, then probably not a bad idea to make sure you didn't get any twists, tears, or wrinkles in the O-ring for the fuel pump.

 

[Nickchr99]

Awesome, I’ll get everything checked out & call around for a smoke test and I’ll keep you posted, THANK YOU ! 🙏

 

[Nickchr99]

You might, most likely when fueling the car.

Best bet may be to run a smoke test. I saw a post in the TLX forum where they took their car in for a TSB and afterwards it started throwing errors related to EVAP system leak. The first solution attempted was to replace the filler neck and it was taken back a few times because the issue kept reappearing. Once they reminded their service rep that it all started after that TSB they ran a smoke test and found it coming out around the fuel pump locking ring. Turns out they had twisted the O-ring for the pump.

If you're not able to do a smoke test, then probably not a bad idea to make sure you didn't get any twists, tears, or wrinkles in the O-ring for the fuel pump.

Following the smoke test, it’s leaking from this plus that connects to the solenoid on the canister, is there an o ring there ? And what is the plug called

 

[02RSXS]

Not exactly sure what I'm looking at to even know. Best bet may be to use one of the Acura parts websites w/ diagrams to figure that out.

 

[Nickchr99]

Can anyone tell me what is the hose called that is connected to the charcoal canister & where does it lead to. Was told it was leaking smoke when I got it smoke tested and was wondering if I need to replace that hose.

 

[Perfectionist]

Whoever diagnosed the leak should be able to tell you what was leaking and needs to be replaced.

 

[Nickchr99]

Whoever diagnosed the leak should be able to tell you what was leaking and needs to be replaced.

You’d think, I told them I do my own maintenance and then they didn’t want to help me anymore after that. I’m figuring it out

 

[Nickchr99]

Fixed all my EVAP problems, drove the car 200+ with no cel light, I put some gas in my tank and I get a check engine light, why would that be ? brand new OEM gas cap from Honda

 

[Perfectionist]

What's the code?

 

[Nickchr99]

What's the code?

P1457. I’ve already replaced all components of EVAP system, purge valve, charcoal canister, shut off vent valve, 2 way by pass , some hoses , gas tank vent valve , gas cap

 

[Nickchr99]

Well the code refer to the vent valve on the charcoal canister located under the car near the fuel tank, I doin't know if u check that already

I’ve replaced the vent valve on the canister twice, same thing with the 2 way by pass

 

[Nickchr99]

Im driving 02 Acura RSX base auto, I’ve replaced all components of the EVAP system that includes, gas cap, purge valve(from eBay) that is on the throttle body, I’ve replaced the charcoal canister(Autozone) the shut off vent valve (Autozone) 2 way by pass valve(Autozone), fuel tank vent valve(Autozone) and after 101.7 miles, the check engine light comes on again. Can anyone P L E A S E help me

 

[Perfectionist]

Is the filler pipe rusted out? Are all the hoses on the canister in good condition?

 

[Nickchr99]

The filler pipe and hose looks fine, the hoses on the canister are good, I’ve gotten several smoke tests and was told nothing is leaking, could it be bad 02s or the eBay purge valve but I’m not getting any specific codes besides p1457 EVAP leak charcoal canister area

 

[Perfectionist]

AFAIK O2 would not cause P1457. Double check gas cap o-ring and try to test the shut valve and purge valve. Good luck.