Hey Guys, Well my car is doing the 5psi boost or nothing at all thing...i noticed the bpv had a small rip on its outer edge, I had a hahn block off plate on so I was putting the stock stuff back on to see if it was the bov causing this but it wasnt...I keep getting the p0101 code as well!I noticed this happing as I was trying to get on the hwy and was getting the usual boost and then all a sudden it was gone.....terrible feeling! Car is running terrible, anyone have any info to help me out?? Thanks

 

Check for cracked intercooler end tanks.

 

You definately need a new BPV diaphram. You have a boost leak there for sure with or without the block off plate in because the diaphram is supposed to seal it in either case. P0101 normally means a big external (not the BPV) boost leak. Cracked IC or CP is the most likely culprit.

 

Bah. That sucks. I was thinking about moving to an external recirculating BPV so I wouldn't have to worry about the diaphragm. I thought the block off took care of it. If that's the case, there's no point, and I might as well stick with the stocker.

Guess it's time to order a spare for when (not if) it rips.

 

whats the part number for the diaphram?

 

Yep if you forget to put the stock diaphram back in when you do the Hahn or any other block off plate for this car you will have a massive boost leak. A few have found this out the hard way.

 

Not sure but I remember it comes only with the cover kit for the BPV that comes with the tan cover, the diaphram and the spring. IIRC it is approx $68 and last I heard it was on national back order like all the parts for this car. Stupid GM.

 

Part: 19168558
Category: All
Description: VALVE KIT
Min.Qty: 1
Unit Price: $64.69
Quantity: 1
Ext.Price: $64.69
Core Charge: $0.00

I just ordered one. I like to have spares for commonly broken parts. Part of the reason why my wife hates our garage...

 

Where did u order yours from?

 

Before you go spending money make sure that the waste gate actuator rod nuts are not loose. I've seen this on many vehicles. Gm has released new locking clips for the nuts. There is also passenger side radiator support bolt that may rub a hole threw the exit hose out of the IC.

 

Well I have no boost no power nothing....don't even wanna drive it, I was getting on the hwy and hit it and then all a sudden the power was gone and it kinda starts jerking like I guess u could say....frustrating!

 

Checke the nuts! No reason getting frustraded when there could be a simple solution!


You have to check the waste gate solenoid rod from under the car.

Make sure the two nuts at the end of the adjusting rod arnt loose.

If thats not the case, check your ic piping for contact with the radiator support bolt.

 

thanks, ill try and check it this weekend....also i have a mpx catted downpipe and catback...is it usual with these to smell exhaust type smells or is that another thing i need to check out?

 

Finally had time to work on it today, made a boost leak tester then took the front bumper off and bam a sec later after taking it off I'm done lol! A giant crack or actually a few off them on the plastic ends of my intercooler....this is the second time this has happened, guess I'll be ordering one Monday! Wish zzp had theirs ready....I need one now! Not the 20th...sigh oh well, thanks guys for the help