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Re: Chevy evap
Posted: Sun Oct 11, 2020 8:05 pm
by DCIV
I did buy the purge valve as I think that is the issue now that it did that shutter to me. Hopefully that fixes the issue.
Coop
Re: Chevy evap
Posted: Sun Oct 11, 2020 8:19 pm
by vr4
You only need to drop the tank if the leak is above the tank. Charcoal canister can be removed. Vent solenoid is common failure.
Re: Chevy evap
Posted: Sun Oct 11, 2020 8:23 pm
by DCIV
[quote=""vr4""]You only need to drop the tank if the leak is above the tank. Charcoal canister can be removed. Vent solenoid is common failure.[/quote]
I will have to take your word for it. That thing looked like a bitch to do with the tank in!
The vent solenoid doesnt look fun. You happen to remember how that hose comes off? Im sure its odd. If not I will look it up.
Coop
Re: Chevy evap
Posted: Mon Oct 12, 2020 1:11 pm
by DCIV
Drove home from work, no issues. Was heading back out, misfire everywhere. Took it back home and parked it.
Fucking Chevy.
Coop
Re: Chevy evap
Posted: Tue Oct 13, 2020 11:53 pm
by DCIV
Changed out the solenoid. Took it for a drive and it was normal the entire time, but it drove from work home the other day just fine as well. So I am gonna drive it a couple times this week to make sure it is or isn’t fixed.
Coop
Re: Chevy evap
Posted: Wed Oct 14, 2020 1:37 am
by DCIV
Local guy will put on block off plates to delete the evap, flash the ecu to get rid of it, the rear O2’s, and the top speed limiter, all for 160.
If this didn’t work that’s what’s getting done.
Coop
Re: Chevy evap
Posted: Wed Oct 14, 2020 1:07 pm
by DCIV
Drove fine this morning. I guess I will not know till I go fill up but hopefully everything is fixed.
Coop
Re: Chevy evap
Posted: Fri Oct 16, 2020 2:10 pm
by DCIV
It did it again. Only seems to happen when it’s wet out honestly.
That’s odd.
Coop
Re: Chevy evap
Posted: Sun Oct 18, 2020 11:24 pm
by DCIV
Cleaned all the ground connectors today. Sanded down and made sure I was getting good grounds. One was barely holding on so I put a new connector on it.
Don’t know if it helped or not but I’m grasping at straws why it would only do it when it’s wet out.
Coop
Re: Chevy evap
Posted: Wed Oct 21, 2020 4:02 pm
by DCIV
Took it to a guy at work who has a real tech II. He was sure if the ecu flashed it would store a code and my obd reader just couldn’t read it. Well nothing.
This is infuriating. I do have one bad o2 sensor. Gonna replace it, but I have already and I guess it didn’t like the sensor I put in. Maybe it’s loading up?
Could this be an intake gasket leak?
Coop
Re: Chevy evap
Posted: Wed Oct 21, 2020 8:39 pm
by DCIV
Did it again going into town and coming home. I pulled over and took the gas cap off at one point. It did it again for about a mile and then didnt do it anymore.
I dont know if the lines are stopped up or if this problem has anything to do with the evap system. All I know is I only have one code and its for the o2 sensor and its not gonna cause this. Im at my wits end as if it were a cyl misfire it would tell me.
Could it be transmission? It certainly feels like engine. Like Ive felt the difference but this no code thing has me questioning everything. It doesnt seem to care if its any certain gear or tow/haul mode so if it is trans it would have to be torque converter. Whats a bad torque converter feel like?
Coop
Re: Chevy evap
Posted: Wed Oct 21, 2020 9:53 pm
by vr4
You're gonna need a smoke machine and way to activate the vent and purge solenoids while watching ftp.
Gm evap is almost as easy to diagnose as Ford is. Chrysler... Fuck those systems.
Re: Chevy evap
Posted: Wed Oct 21, 2020 10:16 pm
by Chris GTO TT
What about diagnosis for a BRZ Evap?
Re: Chevy evap
Posted: Wed Oct 21, 2020 11:10 pm
by vr4
[quote=""Chris GTO TT""]What about diagnosis for a BRZ Evap?[/quote]
LS swap it
Re: Chevy evap
Posted: Thu Oct 22, 2020 12:36 am
by Chris GTO TT
It's my cousin's son's car he can't afford to, also have you forgotten where I live?
Re: Chevy evap
Posted: Thu Oct 22, 2020 12:39 am
by vr4
[quote=""Chris GTO TT""]It's my cousin's son's car he can't afford to, also have you forgotten where I live?[/quote]
I didn't know you were serious. Give me codes and year of car.
Re: Chevy evap
Posted: Thu Oct 22, 2020 12:47 am
by DCIV
[quote=""vr4""]You're gonna need a smoke machine and way to activate the vent and purge solenoids while watching ftp.
Gm evap is almost as easy to diagnose as Ford is. Chrysler... Fuck those systems.[/quote]
What are your thoughts about the delete?
Coop
Re: Chevy evap
Posted: Thu Oct 22, 2020 12:52 am
by vr4
[quote=""DCIV""]What are your thoughts about the delete?
Coop[/quote]
Idiotic.
Re: Chevy evap
Posted: Thu Oct 22, 2020 12:53 am
by DCIV
[quote=""vr4""]Idiotic.[/quote]
Elaborate?
Coop
Re: Chevy evap
Posted: Thu Oct 22, 2020 3:28 am
by Chris GTO TT
[quote=""vr4""]I didn't know you were serious. Give me codes and year of car.[/quote]
P2404 2013 FRS. I'm thinking it might be the vacuum pump on the Charcoal canister. Of course that likely means we have to drop the diff
