2005 Toyota Corolla Air intake

2005 TOYOTA COROLLA
35,000 MILES • 4 CYL • 2WD • AUTOMATIC
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NATTHEFAT111
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2005 Corolla S with about 35,000 miles on it. Tried changing the original stock air filter with a whole new aftermarket system. Tried hooking everything up and we didnt know where the hose went. During the attempt of installation the chip or piece with the wires that goes into the intake pipe touched the battery and there was a spark. Didnt know if that friend the wires or something or if it affected the car at all We tried starting the car and it didnt want to start. It kept coughing. So we decided to put the stock filter back on and we did making sure everything went back. The car started a little stronger but it still died on a couple of the stars. We took it for a short drive of about a mile and the car died about 10-15 times. Whenever we tried to accelerate or step on the gas just a little, then the car would shut off and we would have to start it back up. If we pressed the pedal very slowly then it would be ok and wouldnt stall as much but sometimes you would hear this really weird noise like cough. Maybe there isnt enough air getting to the engine or the chip that goes to the intake is messed up. Please help beacause this is my friends car and we want to find the problem. Thank you very much!
Dec 13, 2008 at 8:03 PM
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MMPRINCE4000
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You should have an engine light on (check engine). There is a sensor in the intake called the IAT (incoming air temp), you either fried the sensor or blew a fuse.

When the sensor is out of normal range, the PCM will set a default value (always rich).

You will have starting and driveability problems until the IAT is fixed.

Fix it ASAP, because a rich mixture will quickly ruin the CAT, by causing it to overheat.
Dec 14, 2008 at 5:59 AM
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NATTHEFAT111
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Do you know where I could possibly get the IAT sensor and how much it woulkd cost? And would i have to also replace the MAF sensor?
Dec 14, 2008 at 7:50 AM
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MMPRINCE4000
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IAT sensor should be available from most autoparts stores. Probably $30 or so. The MAF can get expensive, so hopefully the IAT is the culprit.

Take it to any autoparts store for a free scan of the PCM.
Dec 14, 2008 at 9:37 PM