[jbertino]

So I installed my inlets yesterday . From looking at my logs I can't really see any difference in wgdc.here is log before
Tony is saying I have a vacuum leak or a boost leak.
My vacuum reads -21 at idle is that normal?
And I'm not throwing any codes for a boost leak.

http://datazap.me/u/bertinoj/no-inle...=1&data=1-8-22

both logs in there

[335NJ]

Upload the logs to datazap.me

[jbertino]

Yea I will when I get home sorry. This is all I can do on the phone

[jbertino]

Originally Posted by 335NJ

Upload the logs to datazap.me

updated with data zap logs

[jbertino]

Also my bov is very high pitched now

[autoart]

So did you do the install, How hard was it?
If you had someone else do it, how much did it run? Thanks

[jbertino]

Bump

[Dmacc]

Originally Posted by jbertino

Bump

You should be pulling slightly more vacuum than 21, somewhere around 25-26 is normal from what I've noticed.

[jbertino]

Originally Posted by Dmacc

You should be pulling slightly more vacuum than 21, somewhere around 25-26 is normal from what I've noticed.

I'm actually closer to -18

[MM Performance]

18" hg is about normal for a fully warmed up car (out of cold start mode).

[MM Performance]

I would say at 21" your vac at idle is acceptable and since pulling more vac at fully warm idle its prob showing a bit healthier engine than mine.

What you need to test is to put a hand vac pump (like mighty vac) and pull vac on all your vac lines and tank going to the boost solenoids and wastegate actuators as if you have a leak in lines or in one of your actuators it will mess up your WGDC. This is usually where I have found the problem to lie. Also your PCV valve could be leaking boost under load so you may consider pulling it out and testing it and if it is not holding boost, upgrade to RB or VTT PCV valve. Even if it is holding boost you could be leaking boost on your valve cover gasket, that's a hard one to test but can be done by dropping the intake manifold and pulling vac on each little PCV hole in each intake runner while plugging the others and the PCV port. You could also have a boost leak in one of your couplers in your plumbing, this can be tested with a boost leak test or smoke test. Hopefully I gave you some ideas

[jbertino]

Originally Posted by MM Performance

I would say at 21" your vac at idle is acceptable and since pulling more vac at fully warm idle and prob showing a bit healthier engine than mine.

What you need to test is to put a hand vac pump (like mighty vac) and pull vac on all your vac lines and tank going to the boost solenoids and wastegate actuators as if you have a leak in lines or in one of your actuators it will mess up your WGDC. This is usually where I have found the problem to lie. Also your PCV valve could be leaking boost under load so you may consider pulling it out and testing it and if it is not holding boost, upgrade to RB or VTT PCV valve. Even if it is holding boost you could be leaking boost on your valve cover gasket, that's a hard one to test but can be done by dropping the intake manifold and pulling vac on each little PCV hole in each intake runner while plugging the others and the PCV port. You could also have a boost leak in one of your couplers in your plumbing, this can be tested with a boost leak test or smoke test. Hopefully I gave you some ideas

Thank you.
I have the rb pcv already I'll recheck it
I checked all my coupling already.
I bought new vac lines already so I'm swapping them in a few hours

[doug@frankenturbo]

Originally Posted by jbertino

updated with data zap logs

Thanks for posting such an excellent data set of before/after results. They were really instructive.

[jbertino]

Originally Posted by doug@frankenturbo

Thanks for posting such an excellent data set of before/after results. They were really instructive.

Is this sarcastic

[doug@frankenturbo]

Originally Posted by jbertino

Is this sarcastic

Absolutely NOT. I don't insult forum users. So, in my opinion the logs were exceptionally well done for before/after analysis. I'm not used to seeing that, which is why I said what I did. Maybe I need to be better with the emoticons.



This one also seems silly and insincere. I'm just going to say "thank you" and leave it at that.

[jbertino]

Yea thank you the emoji through me off

[MM Performance]

So I just actually looked at your logs. Are you sure you are logging the actual WGDC and not the one Cobb tells the DME it's usi or another WGDC? Also can you please log/show the target boost curve as well?

[dawhiz]

Replace both of your boost solenoids. I had one leaking out and the other not once vacuum was applied. They both acted differently. Replaced both and solved my leak.

[jbertino]

Originally Posted by MM Performance

So I just actually looked at your logs. Are you sure you are logging the actual WGDC and not the one Cobb tells the DME it's usi or another WGDC? Also can you please log/show the target boost curve as well?

Ok so I'm logging wgdc after pid.
Should I be logging something different ?.
What do you need me to log to show my boost curve.? Pretty sure it was on there

[jbertino]

I'm running a boost leak test right now. And I'm pressurizing the system. The car is not holding . It sounds like the air is coming out near the turbos. Are the waste gays supposed to be open or closed when the car is off?

[MM Performance]

Originally Posted by jbertino

I'm running a boost leak test right now. And I'm pressurizing the system. The car is not holding . It sounds like the air is coming out near the turbos. Are the waste gays supposed to be open or closed when the car is off?

if its leaking at the WG actuator your WG actuator may have a tear in the diaphragm or the hose going to the actuator is disconnected or has a tear.

[jbertino]

Originally Posted by MM Performance

if its leaking at the WG actuator your WG actuator may have a tear in the diaphragm or the hose going to the actuator is disconnected or has a tear.

Wouldn't the car need vacuum to keep the gate shut. When the car is off it has no vacuum so it's open