BigBirdTA

Based on my reading of other posts, I understand that it "tweaks" the signal so the computer things a different amount of air is flowing thru it, thus affecting fueling.

If I didn't want the "tweak" that it does, would cutting off the resistor make it just a plain truck MAF?

If yes, would a plain truck MAF table supply the ballpark PCM values for the MAF table in a 2002 LQ9 based 408 setup?

The car has a 2002 LS1 PCM, with a stock MAF table...

And, just to be sure. The resistor would be the one that the LEFT arrow is pointing to, correct?

sobaka__79

iTrader: (1)

yeah i want to "fix" my slp maf,

can someone explicitly and plainly detail how and what you cut to get teh spark advance out of the 99 mafs?

jimmyblue

iTrader: (11)

Left arrow is the resistor that "calibrates" it to stock (ish) F-body
range. Right arrow is the IAT sensor. Only cut the left-arrow resistor
if you are prepared to write a tune to the PCM with a proper truck
MAF table.

If you want to make minor changes to the early-years version get
a 2.7Kohm resistor from Radio Shack and substitute it for what's in
there now (probably 2.4K, I have never taken apart the other SLP
MAF but did my "'01-'02" one. Lower resistor makes leaner, higher
makes richer.

Doc

iTrader: (9)

Get somebody to desolder it (the object on the left in the photo) properly and tune the vehicle.

Frost

iTrader: (45)

+1 ...

2002_Z28_Six_Speed

iTrader: (19)

I would leave it alone and sell it because you could probably get enough off it to get a non-messed with Truck MAF. Surely, someone else will want it that doesn't have a tuning solution on a stock-ish car.

Truck MAFs are a dime a dozen. Maybe 50 dollars. I got a stack of new ones in mint condition. They are all over ebay. The pig tails are approx 5 dollars online new in box.

I am pretty sure you could get more than 50 from your SLP maf on ebay. Make some money and get something in better condition.

BigBirdTA

Thanks guys.

possum22

I just de-soldered one side & moved it so it wouldn't touch anything(in case I want to sell it later), I put the MAF table from a VZ Holden Commodore(05LS1) in the tune, I have a 04 LS1 Holden Adventra(Commodore AWD).

I done the MAF recalibration using redhardsupra's directions, found it less 10% out in some places.

SmaknaSS

iTrader: (1)

Strange, That's almost exactly what I did. Only because I wanted the MAF to somewhat report the stockish air flow and not have to re tune my timing tables. I still had to tune for the MAF though.