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View Full Version : Little Help? MAF wiring - Stock GT vs LS3/LS7 Maf Card?



MaxPower
07-18-2011, 09:09 AM
I'm debating on getting an extension from Casper w/ IAT breakout, or just extending my wires to reach the MAF plug.

Either way, does anyone know the pinouts on the STOCK MAF vs. the LS7 MAF card?? I don't want to fry the sensor by just "plugging it in".

Oh, and the stock GT connector plugs right into the LS7 MAF card w/o issues - but I'm SURE there's a wiring difference???

Some reference pics:
http://i838.photobucket.com/albums/zz304/jsfritz73/G8TT%20Build/15aef92c.jpg

Stock wiring:
http://i838.photobucket.com/albums/zz304/jsfritz73/G8TT%20Build/449b9194.jpg

Need about 6" extension to reach under the tube:
http://i838.photobucket.com/albums/zz304/jsfritz73/G8TT%20Build/ec2e2631.jpg

HELP! :uhm:

Patrick G
07-18-2011, 09:26 AM
Of course it plugs in, but it will not work. Pinout is different. Brian Reckart knows the pinout difference and sells an adapter to mate the L76 plug to the LS7 MAF plug.

MaxPower
07-18-2011, 09:28 AM
The PowrMAF has some schematics, and it looks like just the 12v and ground are flipped.

For reference, here's the stock wiring (Yellow is MAF signal, Pink is 12v, and the brown wires are IAT):
http://i838.photobucket.com/albums/zz304/jsfritz73/G8TT%20Build/3476b2f8.jpg

G8 GT V8
07-18-2011, 09:36 AM
Check out Casper part number 108124. I think its what you need.

Greg@PacePerformance
07-18-2011, 10:18 AM
G8
Pin - Wire - Circuit - Function

A - 0.5 YE - 492 - MAF Sensor Signal
B - 0.5 PK - 439 - Ignition 1 Voltage
C - 0.5 BK - 450 - Ground
D - 0.5 BN/RD - 472 - IAT Sensor Signal
E - 0.5 BN/WH - 2760 - Low Reference

LS7
Pin - Wire - Circuit - Function
A - 0.35 YE - 492 - Mass Air Flow (MAF) Sensor Signal
B - 0.8 BK/WH - 451 - Ground
C - 0.5 PK - 539 - Ignition 1 Voltage
D - 0.35 TN - 2760 - Low Reference
E - 0.35 TN - 472 - Intake Air Temperature Sensor Signal

MaxPower
07-18-2011, 01:32 PM
G8
Pin - Wire - Circuit - Function

A - 0.5 YE - 492 - MAF Sensor Signal
B - 0.5 PK - 439 - Ignition 1 Voltage
C - 0.5 BK - 450 - Ground
D - 0.5 BN/RD - 472 - IAT Sensor Signal
E - 0.5 BN/WH - 2760 - Low Reference

LS7
Pin - Wire - Circuit - Function
A - 0.35 YE - 492 - Mass Air Flow (MAF) Sensor Signal
B - 0.8 BK/WH - 451 - Ground
C - 0.5 PK - 539 - Ignition 1 Voltage
D - 0.35 TN - 2760 - Low Reference
E - 0.35 TN - 472 - Intake Air Temperature Sensor Signal

Awesome!!! Thanks Greg! Just what I had figured on the 12v and ground flip

owlsarepretty060
04-18-2017, 12:08 AM
Unfortunately, I can not help you! I'm not good at this. Sorry!((

-Ray-
04-18-2017, 01:58 AM
Unfortunately, I can not help you! I'm not good at this. Sorry!((

They don't need your help. That was 6 years ago.

-Ray-
04-18-2017, 01:58 AM
Unfortunately, I can not help you! I'm not good at this. Sorry!((

They don't need your help. That was 6 years ago.

travis gore
04-20-2017, 01:17 AM
They don't need your help. That was 6 years ago.

They still might be having that issue lol :facepalm:


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