I have to replace the Evap solenoid all the time, why is this? Is there something else thats wrong with the car? Mods are in my sig.

 

Are you overfilling the car?

 

Naw man just when the pump stops I do. Is this maybe tuning realated?

 

why do have to replace it what are your symptoms?

 

A cel and a rougher running car

 

rough at idle or while moving?

 

You changed the part LOL. The evap solenoid is different. Did it crack or just quit working? If they keep failing it could be an electrical issue. I doubt anything in the tune would cause it.

 

yeah I meant solenoid dunno why I said canister lol

 

idle

 

does your exhaust note almost sound lobed or cammed? your vacuum gauge move up and down a little?

 

How many times has it been replaced? If its more than like 2 or 3 i would suspect a electrical issue like bad ground or (broken,corroded)wiring issue causing high resistance which keeps killing the part.It is also a good possibilty that you just got bad new parts,that happens alot more than people think.Another possibilty is carbon buildup.I changed one a couple weeks back,it failed because a chunk of carbon broke free and clogged the hole.

 

does yours do this cuz mine does too

 

If you are untuned for that Hahn intake that would explain the rough idle. The car will run very lean sometimes with the Hahn intake on. If you put the stock airbox back on the car and unplug the ECM for a few seconds and plug it back in and the issue goes away you have your answer. If it still idles rough someone should scan the car to check the fuel trims at idle.

 

its tuned and still does it and we data logged the stock tune and it was only 1% off on my car anyways

EDIT: so I guess its scan the trims at idle

 

Who tuned you? The Hahn intake is off 12-14% or more in some areas. Idle areas up to 20% off of stock. I have tuned 5 cars with Hahn intakes including my own.

 

Yes, sources say my front o2 sensor. I ordered it and will replace, and ill give you the results

 

Terminator2 "who tuned you"

it was a local tuner. how long were the intakes on the car before they were tuned cuz mine was on for about 10k before I was tuned and it was for sure only 1% off maybe it was just my car

 

My car just threw an EVAP code the other day, I believe it is P0451. I cleared it and it hasn't came back, but I have noticed lately that the car doesnt want to start sometimes. Has happened maybe 4 times now, and then when it does start thee rpms bounce all over at idle. They go from 500 to 1800 back down to 700 and so on. I am Trifecta Tuned and I have the Hahn Intake, but have been tuned with the intake for about 14,000 Miles with no issues until now.

 

Where do the tubes for the EVAP lead from the solenoid? I can't see where they go.

 

yeah. i wish someone would post a how-to about this, because i did have to do this once but the part was only like $40 bucks. labor on the other hand, was $65... it took them about 25 minutes outside of the overloaded shop to do it too.

 

Simple solution. Get rid of it.

 

25 minutes to install a purge solenoid? It can do it in 2 minutes.

 

Your tuner was BSing you. Your car would not be that different unless it has a boost leak somewhere.

 

From what I can see, there's a small vacuum line that leads to the canister from the purge solenoid.. It looks like there's a large Vacuum line that leads from the canister to the Solenoid valve (on top of the engine) that controls the Bypass valve.

 

I didn't watch them do it. That's just how long it took for them to send me on my way. Tell me how to do it. I don't even know what it looks like.