for this DIY the engine must be cool, you'll need a 5/16" nut driver or socket (or even a flathead screwdriver) and a 10mm socket, ratchet and small extension, a few clean rags, 1 can of MAF sensor cleaner and 1 can of Throttle Body cleaner. Car is an 2004 GTP....
loosen the three clamps on the intake assembly (1 at TB, and 1 at each side of MAF) with a 5/16" nut driver


unplug MAF by removing Grey locking tab, and depressing the small black tab, and pull.




remove vacuum hose from back of bellows


and remove assembly from vehicle (the screen is the inlet side of the MAF sensor)

remove intake ducting from MAF (this is the outlet side of the MAF sensor)

and spray throughly with MAF sensor cleaner,

hot damn!!


DO NOT TOUCH THE SMALL METAL WIRES INSIDE THE MAF WITH ANYTHING! just spray them with the cleaner.
set the MAF sensor aside to dry and move on to the TB

start by unplugging the TB by lifting the Grey tab up (on top of the connector)

as your lifting the tab, you'll feel the connector pull from the TB. pull and remove.

remove 2 10mm bolts on top and 2 10mm nuts on bottom of TB,you'll notice a small amount of coolant leak out during this step,mine only leaked maybe an ounce of coolant at best. It is imperative the engine is cool before attempting to remove the TB


and remove

pretty grubby......

start by spraying TB with TB cleaner

some of the crap will be a bit stubborn,just take your time and be through

you can hold the butterfly open with a finger or two to get the crap out of the inside,rags will come in handy for scrubbing out the stubborn stuff.Be careful not to damage the black rubber gasket.

the inside of the intake was quite cruddy

so I used a rag soaked with TB cleaner to clean in there also


I would not recommend spraying TB cleaner into the intake of the Supercharged engines as the chemicals could damage the rotors inside the Supercharger itself,

nice and clean

now simply reverse the process by installing the TB, bellows, and MAF. The arrow on the MAF will point toward the engine,and all the ductwork has tabs and cutouts to correspond to each other.

insert vacuum hose into bellows

tighten clamps

plug connectors back into TB and MAF,start car and check for leaks at bottom of TB,
your finished


I could tell a noticeable difference in how the car runs now. any questions? PM me and I'll help you as best as I can....


James

Great write up and pics.

Thanks a million.

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2004 Grand Prix GTP Comp G
Modified K&N Aircharger, Inferno package, SPO Satin Nickel grille inserts, Wind deflector on sunroof,

Thank you very much, I especially like the last pic!

Thanks again.

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2007 Grand Prix

Can you safelty remove that screen from the MAF?
Ive heard its a little restrictive.

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Anyone think they can make a better?
|
V

sweet!! nice write up!!! THANKS!!

next oil change i WILL do this since i installed a drop in panel K&N not too long ago.

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the screen decreases turbulence. its been agreed that it shoudl be left alone

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'05 WRX STi - COBB Stage 2|Invidia DP|3" Borla XR-1|Coilovers|Camber Plates|Swaybars|Endlinks|Bushings|Braces|Anti Lift Kit|DBA4000s|SS lines|
Sold: 06 Cobalt SS/SC, 99 GTP 245WHP/326 Ft-lbs, 06 R6

mine doesnt look like yours

but i think i sprayed my maf with tb cleaner is that bad?

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mmmm miller high life...

the champagne of beers....

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BLASPHEMEY! YOU HAVE THE BEST BEER IN THE WORLD AS YOUR AVATAR!


And he's talking about MHL....SHAME ON YOU ANDY!

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2002 Audi Allroad- Queen Quattro
1997 SoobyRooo OutBack Legacy-Tha Uberoo
1994 Grand Prix Special Edition- Bandit 1
2004 Grand Prix GT2- Miss you Silver!

"We are the lone forgotten sons
And daughters that don't belong to anyone..."

i threw my screen out a few years back, think i should get a new one ?? throttle body is clean..

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injection is nice but id rather be blown

i know i do!!! PBR is the BEST!!!! but i also enjoy miller high life on occasions. i won't buy it, but i will drink it. but its real slogan, says it on the bottle, you can see some of it in his pic that its the champagne of beers. which is all i was stating, just their slogan. haha

only thing bad about PBR is the next morning. you spend like a hour sittin on the sh**ter, if you drink more than like 8 of em, which isnt hard. haha

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I honestly couldn't say,as long as it was dry before being using it you should be fine.

lol
tall boys.... FTW

PBR does give you terrible Beer Butt. I have no clue why... But after a night of drinking PBR All I do is shit for the next 4 hours...

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2002 Audi Allroad- Queen Quattro
1997 SoobyRooo OutBack Legacy-Tha Uberoo
1994 Grand Prix Special Edition- Bandit 1
2004 Grand Prix GT2- Miss you Silver!

"We are the lone forgotten sons
And daughters that don't belong to anyone..."

oh man i hear ya there. but its sooo good!!!!!, and inexpensive.

24 pack 9 bucks. hard to say no for that price, or 1.09 for a 24 ounce can.

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its my maf when unplugged to goes back to normal idle and replugged goes back to the harley sound

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can you only chean out the the throttle body with throttle body cleaner or can you substitute with something else.

thanks

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our TB (04+) has quite a bit of electronics on it (drive by wire) so its possible to substitute another cleaner but I wouldn't recommend it.

throttle body screens do one thing. they direct and control air flow. certain grand prixs have them certain ones dont. ive noticed its a hit or miss rather you have it or not.

i dont think you have anything to worry about not having it. its been 2 years since ive had mine in

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2000 Silvermist GTP. CAI, 180 t-stat, stage 2 shift kit, u-bend and resonator delete, fastkatt tuned PCM, autolite P104's, 3.4 pulley, altenator wire upgrade.

what would you be able to substitute with it

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MAF and TB cleaner are around 5 bucks a can so i don't know what could be substituted for much cheaper.AND if something doesn't work out right,a new MAF is $60 and a TB is $204 at Monster.So no,I wouldn't recommend it.