How to Trace Vaccum leaks for P0171 [*]

**Toasty** · 02-13-2008

This writeup on Finding Vaccum Leaks has been added to the How To section and can be found HERE.

**archemedes** · 02-13-2008

sorry if I sound dumb, but what is the bbv?

**SyntheticShield** · 02-13-2008

Okay, let me get this straight.

Toasty, the guy that did the super mod no one has ever seen before overhead console nightmare wiring thingy and got it working. Toasty the Im going to deepen the cubby hole and make it look professional. Toasty that spent all that time working on the HUD switch relocation, getting those connectors and doing all that electrical work and so on.

You're telling me you got this code, you spent the time troubleshooting it and took the time to do a write up and you found the problem and you fixed it with DUCT TAPE?

**archemedes** · 02-13-2008

lol I wasn't going to say that

**Toasty** · 02-13-2008

duct tape is teh b0mb!!!!

why spend $$ when you dont have to?

**Toasty** · 02-13-2008

Originally Posted by archemedes

sorry if I sound dumb, but what is the bbv?

it's the small black round apparatus at the front right of the s/c that controls when boost is available and how much

**archemedes** · 02-13-2008

oh ok, thanks

**SyntheticShield** · 02-13-2008

Originally Posted by Toasty

it's the small black round apparatus at the front right of the s/c that controls when boost is available and how much

And apparently repairable with duct tape now days.

**archemedes** · 02-13-2008

use black for the stealth repair

**Toasty** · 02-13-2008

certainly should hold better than the oe glue did

**Toasty** · 02-13-2008

Originally Posted by archemedes

use black for the stealth repair

good idea!... i didnt have any black... so it's silver.

hmmm i bet i could wrap the underhood braces and dogbones in matching silver duct tape!

sweet!

**archemedes** · 02-13-2008

use a beer can catch can too

**Toasty** · 02-13-2008

Originally Posted by archemedes

use a beer can catch can too

catch can?

eh, no beer fer mee

besides... if it's wrapped right, will protect and look decent enough... better than stock

**SyntheticShield** · 02-13-2008

Oh my, I can see it now. GM ousted by the Duct Tape Motor Company.

**Toasty** · 02-13-2008

Originally Posted by SyntheticShield

Oh my, I can see it now. GM ousted by the Duct Tape Motor Company.

naw, not really...

just so happened that it fixed my issue this time, so it's a good fix.

a whole car would be hard... doubt one could see through duct tape windows. --- unless you get the clear duct tape i suppose

**TyroElite** · 02-19-2008

bbv = boost bypass valve btw

**Abrasive** · 02-25-2008

Thnk you for this write up Toasty. My car tripped this code twice yesterday and I immediately thought the worst when it said "Lean condition - Bank 1". Wouldn't have even thought of vacuum leak if it weren't for this write up.

Somehow I had pulled the vac line loose off the center of the connector on the top of the supercharger when I was replacing the T fitting on my boost gauge tubing. Never even noticed, but I saw it immediately when I opened the hood to look for a vac leak.

Thanks again.

**Toasty** · 02-25-2008

Originally Posted by Abrasive

Thnk you for this write up Toasty. My car tripped this code twice yesterday and I immediately thought the worst when it said "Lean condition - Bank 1". Wouldn't have even thought of vacuum leak if it weren't for this write up.

Somehow I had pulled the vac line loose off the center of the connector on the top of the supercharger when I was replacing the T fitting on my boost gauge tubing. Never even noticed, but I saw it immediately when I opened the hood to look for a vac leak.

Thanks again.

no duct tape required, eh?