Hello everyone,
I need to find out who all has done the maf mod and the throttle body grinding mod(half shafting) and how much miles they have since this mod. I wanna check the reliabilty of these mods to make sure I wont screw myself later. Post which mod you have and the milage with it please. Thanks to all.

 

I'm the originator on my 3.0 of the plastic MAF version of the mod (which really, is a no brainer, lol) and I've had mine over 2 years, over 40,000 miles. No problems.

 

ive had my MAF mod for about 20k and the only problem i had was from the lot of oil from the aftermarket intake dirtying up the element in the MAF. 5 bucks, some electric parts cleaner and 10 minutes later, problem solved.

 

Im still skeptical about doing that mod

 

What are the side effects of the oil getting on the MAF? Is it noticeable while driving? Would it cause any noise perhaps?

 

I did the MAF mod on my 4.0L today and the idle went to hell. No CEL, though, so far.

EDIT: The original poster does not have a signature and I didn't notice that this is binned to 3.0L. So ... nevermind.

 

Did you read my post about additional trimming like I did on Doc's, Bob?

And Andrew, we've never had a problem with ANY 3.0 doing the mod, just 4.0's (like Bob's for instance).

Bob, do you have a scan tool? Can you check your "long term fuel trim" at idle and part throttle?

 

I will borrow a scan tool sometime but not sure when. I thought I followed your instructions exactly. I didn't measure it but I would estimate that the sanded "wing" on mine is about 0.015~0.020".

 

Did you try it before you sanded? Just curious since some work fine without the sanding. Oh well, the 4.0 is "quirky" about that. Could just be the idle -- which afflicts MANY of them. Have you tried PCM reset, then letting it idle for 15 minutes with the A/C off, then 15 minutes with the A/C on? That would relearn the idle startegy and MIGHT help, but it hasn't in many of them.

 

I was getting bad idle the RPMs would drop and it died sometimes, you could smell gas in the exhaust, very smokey exhaust. I didnt notice any "noise" but im not sure what kind youre talkin about

 

And you can get oil on it MAF mod or not.

 

I am still having this whistling noise and rpms and throttle response and/or tranny probs....something just isnt right. I had the pedal literally pinned to the floor tonight and i was stuck doing 70 and 4k rpms...could this be from oil on the MAF? Do I just spray it with the electronic parts cleaner and thats it? Is it avail at pep boys or any auto parts store?

 

I modified it all at once and slapped it in.

As far as the PCM reset and quick learn, that is just for the base IAC flow rate for the idle w/ and w/o AC, in neutral and drive. On a manual like mine, it is for AC on and AC off only. It really shouldn't have made any difference unless the AC was cycling, which it wasn't. Still, it wouldn't hurt to try it, I guess.

 

Mike I use CRC Electronics Parts Cleaner to flush out mine - small can available most autoparts stores - about $4
Disconnect negative lead, remove MAF
Flush, let dry, flush again let dry, avoid direct stream on MAF filament
install MAF - reconnect negative lead

 

Thanks Neil! Hey, the maf is fastened with torx screws riught? T-20 maybe, something like that. I have a set of torx heads, but they are the type that get inserted into a screwdriver magnetically...that is BAD right? Any magnetic stuff is bad for electronics right?

 

needs to be a security torx too.. But that can be gotten easily...

 

I would not worry too much about that Mike
the power to the MAF is off and it really is just a sensor to measure air passing by it

 

4.0 maf mod for 1.5 years no problems, wird idle every now and than but nothing to big, 24,000 miles. I did this b4 the truck had 1000 miles on it!!!!