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Everyone,

I have read all the appends, and have completed the following:

Removed the complete system and tested the solenoid valve with a jumper--it works.

Inspected the lines and they look ok. Howerver when I removed a plasted cover I found a Y connection with one leg open (no tube).

Should this be so?

Thanks,
Kent

 

DTC P1457: EVAP Control System Leakage (EVAP Canister System)

there is a smoke test that let u know where the leak come. i don't know if u can find it

 

Well, I have finally replaced the EVAP Canister (Honda part $105) because of trying to remove the solenoid. We drove the car 50 miles then the code is back on.

How can I have a leak with a new canister.

Kent

 

Most likely it is the Canister Vent Shut Valve : Part # 17310S0XA02.

You need to replace this part.

 

I have the same problem. 2002 Accord with check engine code P1457. Please review what needs to be replaced and approximate cost. I will have to have a mechanic do it. Have been out of work for 2 years. Savings are gone. Really need to keep labor costs down as much as possible. Thanks for your forum!

 

If misunderstood, these systems can be a nightmare to diagnose. I honestly recommend biting the bullet and paying an experienced technician who has the appropriate tools to diagnose the P1457 for you.

You can do this yourself but without certain special tools it's going to take a while.

Do you have a multimeter and a hand vacuum pump with a gauge?

 

I wrote this for another thread -
I have a 2000 Accord. The engine light came on with the P1457 code. I searched on the internet and found that it was likely the valve under the car, if not then the computer. I tested the valve, it was fine, but did not close when it should. So, it probably is the computer. I would have liked the dash light off, but it was not worth the hundreds of dollars for a new computer. So, I waited until I had to get an emissions test. I decided to try to fool the computer. I took the valve off, and put a cork in both ends (in one end there was a leak in the valve and I was not sure which end pressure was measured from for sure). Anyway, the that was about 150 miles ago and no dash light. The other two times I reset the engine light, it came back on within 25 miles. If the light comes back on for P1457, I will update this.Read more at https://honda-tech.com/forums/showth...ighlight=p1457

 

A lot of trained techs have problems diagnosing evap systems, much less a shade tree mechanic without the proper tools.

The canister itself is almost never the problem.

You need a good tech familiar with the system.

 

I'm not going to do it for you but if you look around I posted in a thread some useful information for diagnosing a p1457. I've got my diagnostic times for EVAP malfunctions down to around 10-15 minutes.