running lean
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Bonneville_ssei_00
- SE Member

- Posts: 17
- Joined: Mon Nov 11, 2013 1:49 pm
- Year and Trim: 2000 Pontiac Bonneville SSEI
- Location: Eyota MN
running lean
I recently had the supercharger off and now back together and driving good till the other day I threw a code on my car is said it was running lean Bank 1. do any of u guys know on how to fix it?
- harofreak00
- Administrator

- Posts: 26022
- Joined: Mon May 19, 2008 6:04 pm
- Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
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Re: running lean
Probably a vacuum leak. Check all the vacuum lines.
Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler
Re: running lean
My favorite way is to use carb clean on vac lines but i cannot stress enough to do this very carefully with a hot engine. When you spray the carb clean on a cracked vac line or leak the engine will idle higher than normal.
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Bonneville_ssei_00
- SE Member

- Posts: 17
- Joined: Mon Nov 11, 2013 1:49 pm
- Year and Trim: 2000 Pontiac Bonneville SSEI
- Location: Eyota MN
Re: running lean
I found one that might be the problem it the T that goes in the fuel regulator so I rapped it with duct tape for now till I can get a new one. hopefully that's the problem. thanks.harofreak00 wrote:Probably a vacuum leak. Check all the vacuum lines.
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00Beast
- Retired Site Developer

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Re: running lean
The t's are a dealer-only part if you want the OE style, otherwise you can buy the right size hose and use the little plastic T's that come in a Dorman HELP kit at your local parts store.
Bye Bye:

RIP sandrock

RIP sandrock
Sirius wrote:Think about it. You’re tooling down the road in your Prius, knowing full-well that this thing being green is as big a sham as federally mandated ethanol-enriched gas, Russia pulling out of Ukraine, and Obamacare.
Re: running lean
I robbed about 6 t fitting at the junkyard over the summer, because mine split apart. Must be common for them to split huh?
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Zeik75
- Posts like an L36

- Posts: 999
- Joined: Wed May 02, 2012 3:29 pm
- Year and Trim: 1988 LE
2000 SSEi - Location: Lincoln, NE
Re: running lean
I ended up getting the dealer part for that because of time,, i think it was around 45, next time though I plan to make something that will last a bit longer and be a bit tougher.

-Austin-
1988 LE, Intercooled L67 loading......
2000 SSEi R.I.P. Dead now :( INTENSE FWI, polished LIM, P&P supercharger, custom radiator, standalone trans cooler, trans-go shift kit (donating to the 88)
2002 2500HD Silverado with the 8.1 Vortec and Alison tranny. Likes to eat GT Mustangs and lots of tires, and all while stock!
yourgrandma wrote:And thats how I got my mom pregnant.



