bbond105

I am looking to purchase an 85mm mass airflow sensor for my 2002 WS6. What year truck and engine size came with the 85mm mass airflow sensor? Any help would be greatly appreciated.

jimmyblue

iTrader: (11)

You'd be much better off just removing the stock MAF
screen, than using a screened truck MAF. If you are
smart then you can remove the screen without damage
(in case you wanted to go back) or buy a trashed MAF
carcass and work on the inlet side and swap it on.

Setting the inlet side of the "Oreo" in a dish of paint
remover overnight will loosen it nicely, practically
fall out of the housing.

And any 85mm stock piece is going to need you to
touch the tune. I'd guess you are not ready for that.

big hammer

Delphi af10043. Came in early trucks. Ran fine in my car until I got it tuned. Just surged at idle a bit once in a while.

big hammer

You'll need the adaptor harness to run it though

Mongoose350

iTrader: (1)

Order a maf from Rock Auto. 2002 Silverado with a 5.3 or 6.0 will be an 85mm. I just installed mine today and the screen popped out very easily. It was really no big deal at all. The maf will run around ~$80 but you'll need the harness adapter as well. That's another $20 from eBay.

Mongoose350

iTrader: (1)

Lol Hamma! We must have been typing this at the same time br0.

bbond105

Thanks for the help. Car was just tuned. Tuner said that the stock MAF was restricting the airflow and that I should get an 85mm MAF. Once I get this and a few other things corrected I will get it retuned.

MonmouthCtyLS7

iTrader: (6)

PN# 19207203,25008307,25008308,336-04898. On Ebay for around 40-45 bucks...just type in 85mm mass air flow sensor in their search or ebay item number 370888075355

VandykeT/A

What about the even cheaper route and go speed density. You'd never know the difference from a MAF tune.

bbond105

My tuner advised against going speed density.

joecar

What power is engine expected to make...?

bbond105

It made 428 rwhp and 372 torque. At WOT it was reading a vacuum in the intake manifold and it was also running out of fuel on the top end. Fuel pressure was dropping down to 36 psi. I have addressed the fuel problem. My tuner suggested to install a fast 92 intake, NW 92 TB along with a 85mm MAF and to keep the SLP lid. Once all of this is done I will bring the car back for a retune.