Bypassing the the bypass valve solenoid.

[SuperSonicRS]

So I plan on doing this tomorrow. Can someone confirm that what I'm thinking is correct.

1. Is the factory line coming from the BPV that was connected to #5 but #5 gets capped off.

2. Will connect with the hose at #6. The port #6 came off of will get capped.

3 & 4 we don't touch.

7. We leave plugged in at the intake.

 

[Yosemite Sam]

That is totally correct!


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[SuperSonicRS]

So with my giant hands I was unsuccessful at this mod. I found and could feel where all the hoses were, but it was impossible for me to see what I was doing as to not break anything. Does the solenoid easily detach to get a better view?

 

[Wub2Dub]

It's easier if you remove the manifold. That way you can do the porting at the same time. Just set a day aside.


2012 Chevy Sonic LTZ (hatch)
MPFab CAI, Forge BOV, 2.5" SS turbo back, Trifecta Elite Tuned, bypass valve "bypass", MPFab FMIC, Ultra Gauge, ported intake mani

 

[neginfluence04]

Hmm I may have to give this mod a try.

 

[carsNskis]

Hmm I may have to give this mod a try.

Do eeeeet! Totally worth the $7 and cramped hands (definitely remove the manifold if you have big paws)

it's not the size, it's how you drive it....

 

[Greasemonkey]

did it today along with the redneck intake (i planned on a zzp intake later on) . ordered the forge bov... i think i just said "to hell with my warranty!"

 

[Wub2Dub]

Your warranty will be fine.


----Less engine and more boost----
Snayul (\•O•)/ ...@ii

Build: http://www.sonicownersforum.com/forum/showthread.php?t=19373
------------------------------------

 

[Rickykrudd]

Did this last week with a friend. Took us about 2 hours because of big hands. Found it much easier to actually get at the black/green hose from underneath the car. I went the other route and just ran an entire new line from one end to the other.

Started it up and it was bad...then I realized when I put the intake back on I didn't plug in the air flow sensor...

I also pulled the ABS fuse at the same time.

The car feels...ballsy. Its much better on pulls and the low-end/overall shifting feels much cleaner.

This mod is fantastic and the fact that it cost under ten bucks is nothing short of amazing.

I've been tuned for a while and the thrill of it has kinda worn off over time. But this is a reinforcement of my love for this car and the pleasure I get from it every day.

 

[DocS]

I did this with a new hose to try it and later I redid it using the stock hosing. Not sure how it happened but there's some kind of thin metal near the solenoid that sliced the $hit out of my pinky. Anybody else have this?

 

[2014 Blue RS]

Ouch! But no

 

[Frizodanizzo]

Well I got it done it only took a few minutes.

 

[Frizodanizzo]

So I plan on doing this tomorrow. Can someone confirm that what I'm thinking is correct.

1. Is the factory line coming from the BPV that was connected to #5 but #5 gets capped off.

2. Will connect with the hose at #6. The port #6 came off of will get capped.

3 & 4 we don't touch.

7. We leave plugged in at the intake.

Your post scared me for a second but that's a totally different view of it so yeah you're right lol

 

[MPFab]

So I plan on doing this tomorrow. Can someone confirm that what I'm thinking is correct.

1. Is the factory line coming from the BPV that was connected to #5 but #5 gets capped off.

2. Will connect with the hose at #6. The port #6 came off of will get capped.

3 & 4 we don't touch.

7. We leave plugged in at the intake.

The picture is correct, the description is not.
In the simplest terms:
#1 gets removed from #5. #5 is then capped off.
#6 is removed from port on the intake manifold and then a 4mm bolt it inserted into the hose to block it off.
#3, #4,are not messed with.
#1 gets connected to the port on the bottom of the intake manifold that #6 from the solenoid was attached to. You can do this by adding a small piece of hose, and a splice as described in the write up, run a new hose entirely from the intake manifold port directly to the BPV, or pull#6 off of the solenoid instead of the intake manifold port, add a splice to the end, connect #1 to the splice you installed, and then cap the solenoid.

DO NOT CAP OR BLOCK OFF THE PORT ON THE INTAKE MANIFOLD!!

If you block that off, the BPV will no longer function and cause MULTIPLE issues, and potentially DAMAGE to turbocharger.

 

[SuperSonicRS]

Sorry Morgan, I did have it worded wrong, this it what it should have said.

So I plan on doing this tomorrow. Can someone confirm that what I'm thinking is correct.

Hose #1 Is the factory line coming from the BPV that was connected to Port# 5 but Port #5 gets capped off.

Put a Connector in Hose #1, this will become Port #2. Leave Line #7 plugged into the back of manifold. The opposite end of Line #7 will be pulled off of Port # 6 and Port #6 gets capped off. connect with the hose than came off Port #6 to the splice connector that is Number 2.

3 & 4 we don't touch.

Basically you want to have Line 1 go straight from the BPV to the back of intake manifold.
.

 

[SuperSonicRS]

Wait now that I'm looking closer at the pic I see what you meant. I was describing how to do it the second way you mentioned ( without adding in more hose) just connecting the two lines that are already there, I was assuming that line 1 in the pic was connected to the BPV, I see now that is actually connected to the intake. Sorry for the confusion.

 

[kikodark]

Nice write up and great find. This is a rather easy mod once you find the lines, takes about 10 mins if you know what to do, and do it my way.

Better yet is the results, after some cursory testing (roads have been bad lately)I've found this mod to make more power throughout the rev range. Sometimes it wasn't much but there were a number of points it was making upwards of 10hp over my other runs w/o this mod. Note that I still want to do some testing before officially stating its gains.

As an added bonus the BPV noise is more crisp, almost like a bark.

Also another option for plumbing this in, is to buy 3ft of 5/32" vacuum hose and run it from the vacuum fitting on the passenger side of the manifold to the BPV and plugging the 2 open lines (black/green line at manifold and old line to BPV).

This way is super easy and can be done without getting under the car or removing anything. I couldn't get the hose off the barb shown in pic 5 hence this method.
-Instead I took off the line shown in the last pic with a long screwdriver (it can be seen on the lower passenger side corner of the mani).
-I then hooked up my 5/32" vacuum line and ran it along the old line over the valve cover and to the BPV. The BPV barb is a size bigger but applying some lube and lots of wiggling will get the line on.
-Block off the open lines and call it a day.

Just another way to get this done.

This is the route I went, worked beautifully


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[Christopher_2]

I added a new hose and plugged the two hoses I disconnected with color matching golf tees.

 

[Toadz]

I added a new hose and plugged the two hoses I disconnected with color matching golf tees.

Did the same thing, just added a new hose and plugged off the solenoid.

Now why isn't this a sticky?? This is by far one of the best "free" mods I have ever done to any vehicle. I have been kicking myself for not getting a WRX (couldn't justify the cost since I was going for an economy vehicle versus driving my truck everyday) but now after doing this mod it actually behaves like a turbo should and I am happy with how it performs being stock. Before doing this mod the power would fall off drastically after 4500 RPM in every gear besides 1st. Now it pulls strong all the way up to redline and I find myself not having to use as many gears to accelerate up to 60 MPH, love it! Also noticed that 6th gear pulls better than it did before so I don't have to downshift as much to get up a small incline. The only downside to this mod is it has given me the itch to do more...tune will be next along with exhaust/charge tubes. :banana:

 

[dean_6824]

nevermind