LS3 2Bar MAP Sensor

Reply Subscribe

Thread Tools

Search this Thread

May 20, 2009 | 09:59 PM

TYRFRYR

Thread Starter

11 Second Club

iTrader: (1)

Joined: Nov 2006

Posts: 12

Likes: 0

LS3 2Bar MAP Sensor

I'm trying to find a part number (if it exists) for a LS3 MAP sensor replacement (Stock Part Number 12591290) that supports boosted applications and will fit into the factory manifold and connect to the factory harness.

The BOSCH Part Number for the OEM LS3 MAP Sensor is 0 261 230 146. I'm sure BOSCH makes multiple measurement ranges in this sensor family, now to just find them?????

May 20, 2009 | 10:28 PM

SweetS10V8

12 Second Club

iTrader: (4)

Joined: Jun 2004

Posts: 2,580

Likes: 3

From: Michigan

Id try to see if the LSA or LS9 Map sensor will work in your application since they are both boosted from the factory.

Most MAPs are swappable without any work, and worst case you have to change two pins to make it work.

May 20, 2009 | 10:48 PM

TYRFRYR

Thread Starter

11 Second Club

iTrader: (1)

Joined: Nov 2006

Posts: 12

Likes: 0

Quote:

Originally Posted by SweetS10V8

LSA or LS9 Map sensor

Anybody have the GM Part Numbers for these???

Any Pictures???

May 21, 2009 | 11:42 AM

sroach20

TECH Addict

iTrader: (31)

Joined: Dec 2002

Posts: 2,318

Likes: 1

From: houston, Texas

http://www.bosch.com.au/content/lang...cification.pdf
page 34

May 21, 2009 | 03:36 PM

Big_Bird_WS6

Banned

iTrader: (7)

Joined: Apr 2009

Posts: 1,628

Likes: 1

and what is good to use if you move your map sensor?

May 21, 2009 | 07:36 PM

TYRFRYR

Thread Starter

11 Second Club

iTrader: (1)

Joined: Nov 2006

Posts: 12

Likes: 0

Quote:

Originally Posted by sroach20

http://www.bosch.com.au/content/lang...cification.pdf
page 34

Yep. Already have that tech spec. Know where I can order one??

May 21, 2009 | 07:40 PM

SweetS10V8

12 Second Club

iTrader: (4)

Joined: Jun 2004

Posts: 2,580

Likes: 3

From: Michigan

Scoggin Dickey

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

Brett Foote

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Verdad Gallardo

May 21, 2009 | 08:07 PM

sroach20

TECH Addict

iTrader: (31)

Joined: Dec 2002

Posts: 2,318

Likes: 1

From: houston, Texas

http://translate.google.com/translat...%3Den%26sa%3DG

Jun 26, 2009 | 08:05 PM

#10

TYRFRYR

Thread Starter

11 Second Club

iTrader: (1)

Joined: Nov 2006

Posts: 12

Likes: 0

We'll I've managed to figure out why it's so difficult to get the right part number for this.

This is an excerpt from my thread on HPTuners.

Quote:

Originally Posted by JakesG8

They are listing #12591290 as spchg air inl presure #12592525 is spchg air otlt press.From the pic in the catalog both are retained by a screw. Dont know if that helps

Thanks man!!

I think I discovered why this has been such a challenge to find the right part number.

I managed to talk a local dealer into letting me look under the hood. Popped the cowl up and found two BOSCH Pressure Sensors (#1 and #3). At the time, I didn't realize that there were actually 3 pressure sensors on this engine.

Both sensors (#1 and #3) had the same part number (12591290). Both were BOSCH sensors. Both had the same BOSCH Part Number (0 261 230 146). #3 was made in Mexico. #1 was made in Germany.

I just ordered Part#12592525 noted from the post above. I'm hoping it's the #2 sensor. We'll see if it's the right one.

Wish me luck.

Jun 26, 2009 | 08:10 PM

#11

Petraszewsky

TECH Resident

iTrader: (28)

Joined: Oct 2008

Posts: 895

Likes: 1

From: USA

I need a stock LS3 map sensor and can't find a thing with the stock part number you listed...Do you have any other info on the stock one?

Jun 26, 2009 | 08:28 PM

#12

TYRFRYR

Thread Starter

11 Second Club

iTrader: (1)

Joined: Nov 2006

Posts: 12

Likes: 0

Quote:

Originally Posted by Petraszewsky

I need a stock LS3 map sensor and can't find a thing with the stock part number you listed...Do you have any other info on the stock one?

Check Your PM.

Jul 5, 2009 | 12:04 PM

#13

Rocket468

Staging Lane

Joined: Jan 2006

Posts: 95

Likes: 0

From: Oklahoma City, OK

You can also get a 2 bar off the grand prix, and the cobalts ss that are supercharged if you get the one on top. The one after the supercharger is a 2.5 bar.

Jul 8, 2009 | 05:06 PM

#14

TYRFRYR

Thread Starter

11 Second Club

iTrader: (1)

Joined: Nov 2006

Posts: 12

Likes: 0

Here is the 3Bar Bosch Style MAP sensor for the LS3/L76 Style Intake Manifold. Part Number 12592525.

Thanks to RWTD for the Calibration Data.

Linear: 312.50
Offset: -11.25

Jul 8, 2009 | 05:09 PM

#15

Petraszewsky

TECH Resident

iTrader: (28)

Joined: Oct 2008

Posts: 895

Likes: 1

From: USA

Awesome...Could you post the MAF table? and how much are those new?? Probably about $90??? Same connector and everything?

Jul 8, 2009 | 05:18 PM

#16

TYRFRYR

Thread Starter

11 Second Club

iTrader: (1)

Joined: Nov 2006

Posts: 12

Likes: 0

Quote:

Originally Posted by Petraszewsky

Awesome...Could you post the MAF table? and how much are those new?? Probably about $90??? Same connector and everything?

Slips right in. Bolts right in. Plugs right in. Took 5 minutes including the ecm recalibration.

$24 plus shipping. Total was around $35.

Jul 8, 2009 | 05:22 PM

#17

Petraszewsky

TECH Resident

iTrader: (28)

Joined: Oct 2008

Posts: 895

Likes: 1

From: USA

Cool...Before you sold me that LS3 MAP I went to the stealership and they told they wanted $90...I'll be bookmarking this incase I decide for boost!!! Oh and those tables???