The '02 Corolla aluminum intake manifold uses a 50 mm throttle body bore diameter. 03+ 1zz-fe's have a 55 mm throttle body.The old 1zz-fe throttle bodies use a 3-bolt mounting pattern, compared to the 03+ 4-bolt pattern.The old-style intake manifold might look nice, all polished-up, but performance ...

The answer to your question - is it 9mm or 15mm - is both.The oil catch can is installed inline, between the PCV valve and the intake manifold. If you notice, the stock hose connecting the PCV valve to the intake manifold is tapered. The end that connects to the PCV valve is 9mm (11/32") and th...

Viberator, you might want to check this on your Unichip wiring:I had the same symptoms (limp-home mode) as you and after discussing with Tony Woest, I did this...There should be an unused connector sealed in heat shrink tubing. Normally, this connects to a "turbo module" for F.I. applicati...

Quote, originally posted by BlueCrush »He broke the bolt that is "cast" into the bracket. The one circled in your pic. I use a 24" long 1" diameter pvc pipe for my cheater bar on the tensioner. It gives a little so there's less of a chance to shear the bolt off. Also, I pump the...

If CEL (P0171) comes on during subfreezing temps and accompanied by rough idle, problem could be leaking intake manifold gasket. Dealer should cover repairs under TSB...http://toyota.justanswer.com/u...1.pdf

Here's the pdf for the A246E auto trans, but it doesn't show the internal workings, like it does for the manual trans. Reason is, there's a whole separate service manual for auto trans - but it's not being hosted online anywhere.http://madstyle1972.com/Repair...n.pdfhttp://madstyle1972.com/Repair......

Not sure if you have manual or auto trans, but this might help.http://madstyle1972.com/Repair...n.pdfh ... ir...4.pdf

Header flange to cylinder head (5 nuts) = 27 ft-lb.Midpipe to header (2 spring bolts) = 32 ft-lb.It's kinda tight behind the cylinder head to fit a torque wrench, to torque the header flange nuts. I snugged them down tight with a box-end wrench. One day, when I was checking, one of the nuts vibrated...

It looks like Magnaflow just came out with stainless steel cat-back for 09 Vibe/Matrix w/ 2.4L. Part #16849.http://www.magnaflow.com/02pro...=4523Also, 09 Vibe AWD cat-back is under development. Part #16848.http://www.magnaflow.com/02pro...=4522

If you like the look of carbon fiber, and think the TRD c/f cover looks odd w/out supercharger, you can have your stock engine cover "covered" with a faux c/f film. A company called Pattern Tek (www.patterntek.com) can enhance the look of just about anything made of metal or rigid plastic....

You guys who are stripping the bolt, are you putting the 19mm socket or wrench on the right part? There's a 19mm hex cast into the tensioner arm (see pic). You "turn" that towards the front of the car. Do not turn the bolt below it. Also, being made out of soft aluminum, use a 6-point sock...

the matrix hub register measures 54.1mm. i would think vibe's are the same. most aftermarket rims measure 73.1mm at the hub.

looks like front caliper bolts = 25 ft.lbs.http://www.illformedpragma.com...n.pdf

looks like front caliper bolts = 25 ft.lbs.http://www.illformedpragma.com...n.pdf

Monitor the level in the coolant reservoir, under the hood. If it keeps getting low, probably heater core is leaking.

Too bad your HID kit isn't plug-n-play, would be a lot easier. Anyhow, this information about wire colors applies to the Vibe, which uses dual-filament, H-4/9003, bulbs. Each of the stock wire connectors attached to the headlight bulbs should have 3-wires. 1) The solid "red" wire, from the...

how does it feel? how's the pedal pressure & clutch engagement (smooth or severe)? i have the fidanza 8.5 lb. flywheel (1zz-fe) and 2.1 clutch but haven't installed them yet. i'm wondering if i should have gotten the 3.2 or 4.3 clutch, instead. i have cat-back, header, cai & camcon.

petrucci, i posted this response to your thread on matrixowners...Toyota motor mounts, especially front and rear mounts (the torque mounts), seem to have a lot of "give" for comfort. Not the best thing for performance. A lot of Matrix owners w/ manual trans have installed Energy Suspension...

of the sensors pictured in the thread, 15310 looks closest to the one you need. the pre-cat sensor doesn't use a grommet, since the wire harness doesn't pass through sheetmetal. it attaches to a connector behind the cylinder head. make sure your new sensor connector matches by plugging it in, before...

it's not too hard to install, if you have tools. i would get an O2 sensor socket - it'll make life a lot easier. first, disconnect o2 sensor connector located behind engine cover, on driver's side. use o2 socket + 3/8"-drive universal + long extension + breaker bar to remove old sensor from exh...

are you trying to get the stock horn to work? or aftermarket horns?

If you click on the blue page #'s (i.e. 32 & 38) in the link, it should open up those page #'s for you.

Sorry, this is the only picture I have of O2 #1 (pre-cat sensor). And the exhaust manifold is already removed from the car, during install of DC header. This is what you will see after removing 4 bolts holding upper heat shield. It's possible to remove the 02 sensor w/ exhaust still on car, but it's...

Click on this link for a description of shifting control in uphill/downhill driving (on page CH-19):http://www.illformedpragma.com...a.pdfBasically, the ECU calculates throttle opening and acceleration rate to determine whether vehicle is in uphill or downhill state. The ECU judges an uphill conditi...

http://www.illformedpragma.com...s.pdf

like they said, not a good idea! if that mod really worked & it was safe for the engine, i would think that toyota would've already engineered that idea into the design. after all, toyota/pontiac would like to maximize fuel economy, too.for the scangauge to be reading that kind of fuel economy, ...

you might also want to try to position the intake tube a little better in the throttle body coupler. in the 2nd pic, it looks like the hose clamp is positioned too far onto the hose "barb". move the clamp closer to the end of the coupler, so you don't have that open gap between the coupler...

and here's a description of how v-flex works...http://www.illformedpragma.com...l.pdf

http://www.mityvac.com/info_sheets/07000.pdfget one of these hand vacuum pump/bleeder kits. they cost about $30 at sears or most auto parts stores. it's a simple one-man-job to bleed brakes/clutches with these. normally, you need 2 people to "push" the air bubbles out of the hydraulic syst...

You might want to give one these extended clutch slave pushrods a try. They install between the clutch slave cylinder and clutch fork. It's supposed to help when installing heavy duty clutches. Available from Speed Source:http://www.speed-source.net/products/pushrod.htm

DC header (THC-4405) compared to stock header. I don't see how a ported stock 1zz header could flow more than the DC.

according to my copy of parts listing for 03 matrix (only one i have), pcv valve for:AWD=12204-22050FWD=12204-22040XRS=12204-88800

1ZZ-FE 5-spd (C59 model trans)2ZZ-GE 6-spd (C60 model trans)1ZZ-FE 2wd Auto (A246E model trans)1ZZ-FE 4wd Auto (U341F model trans)2ZZ-GE 2wd Auto (U240E model trans)