I am going to order a chip tomorrow and I need to find out if my mass air meter is a 90 or 80. I have a 2000 Lightning that I just bought a few weeks ago. I has a 4# JL lower pulley and a JL ram air on it. It did have a diablosport chip but was removed before I purchased the truck, because the tape to hold the chip in is cut and I can see in the computer where the chip goes. It was purchased from a dealer so they have no idea. I measured the meter on the end nearest the supercharger. It is almost 4inches. I got some numbers off the meter:

One side shows:

PBT-GF30

Other side on connector shows:

1L3F-12B579-AB
AFH90-02
1G10


The 90 in AFH90-02 makes me think that it is a 90mm from an '02.

Am I correct or can someone please check theirs for me. I need to send an email to Paul at REM tonight.

Thanks

 

You dont have any way to measure the MAF? That would be the safest thing to do.

 

I did, it is almost 4 inches across. I don't have any way to measure in mm. Paul said that the 90s were almost 4 inches, but I just want to be sure.

 

Ugh convert Inches to MM

 

That is the part number for an 02 90MM MAF, I have the same one on my L, I just read the numbers on mine.

 

Thanks GalaxyEng, that is what I needed. I am ordering my chip tonight.

 

To convert inches to mm you need to go to centimeters first. To do that you do inches x 2.54. 2.54 x 4 = 10.16. To go from centimeters to millimeters you move the decimal point one place to the right. So you measured a 101.6 mm mass air. Paul is correct, a 90mm mass air is 3.54 inches across, which is almost 4. Measure again and see if you get 3 1/2, but it looks pretty obvius that its a 90 because an 80 would be 3.15 inches across. Good luck, and I think my math is right, if not someone correct me!

-Brian