Fujita CAI Install

Got the ECM replaced, so it’s time to re-install the CAI. Install is pretty straightforward. Note: Fujita doesn’t make a CAI for the Corolla. This one is for the Matrix XR. Still fits the same. Just a little bit of modification near the end. We’ll get to it then. Well, here we go.

Tools needed:
Flat-Head Screwdriver
Phillips-Head Screwdriver
Ratchet (10 and 11mm deep sockets) or Combination Wrenches of the same size
12″ Extension Bar
Provided Hex Key

Install Time: A little under an hour, based on your knowledge of intake installation and familiarity with your engine bay.

Disconnect the terminals and remove the battery.

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Remove the Engine Cover.

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Remove the crankcase vent tube from intake tube and valve cover.

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Unclip the Vacuum Switching Solenoid (VSS) from the intake tube, then loosen the screw and disconnect the bracket from the VSS.

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Loosen the hose clamps from the Stock Intake.

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Unclip the harness from the metal bracket. Also unplug the wiring harness from the MAF Sensor.

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Unclip the upper portion of the air box and remove it and the filter.

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loosen the 10mm bolts to remove the lower portion of the air box and remove it.

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Loosen the 10mm bolt holding the air inlet.

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Remove the plastic clip holding the air inlet and remove.

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Time to remove the bumper. There are 3 screws on each side holding the bumper on.

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Remove the grille screws and the 2 clips in the lower grille.

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If you’ve followed along your car should look something like this:

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Here’s the stock air box and accessories:

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And the new one:

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And the bumper:

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Now the Intake Install:

Install the 2.50″ to 2.75″ reducer hose and the hose clamps onto the throttle body. Tighten the TB side clamp only. You will see why later.

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Install the vibration mount onto the threaded hole on the shock tower.

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Remove the MAF Sensor from the stock air box.

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Place on new intake pipe with provided machine screws. Tighten with hex key.

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Install the intake pipe to the TB and align the bracket to the vibration mount.

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Install the VSS to the intake pipe with the Phillips screw.

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Install the vacuum hose onto the valve cover and the intake pipe. Plug the harness into the MAF sensor.

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Use some wire ties to secure the vacuum hose to the wiring harness.

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Install the 2.75″ straight hose coupler and hose clamps to the end of the intake. Tighten the intake side only.

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Install the 2d vibration mount to the bracket.

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Here’s where the modification is. The Corolla doesn’t have a threaded hole on the bracket. So I found a 10mm nut and washer in the garage.

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Install the 2d intake pipe from the bottom into the hose clamp on the primary intake.

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You are gonna have to work the intake around the wires for the battery terminal a little. I coudn’t get the intake over them, so i put it under as much as I could. See why you shouldn’t have tightened the clamps and vibration bracket screws?

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Align the bracket to the vibration mount and tighten.

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Tighten the 1st vibration mount as well as the remaining hose clamps.

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Install the filter.

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That’s pretty much it.

Re-install the battery.

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And the Engine Cover.

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And Voila!!

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Re-install the bumper.

Reset the ECU.


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