Question about 1990 Toyota Corolla

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Where is the intake air sensor on a 1990 toyota corolla

1.6 l

Posted by Anonymous on


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nevan the ma

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SOURCE: Car/1990 Toyota Corolla

If Biggy1 has described it right, I think when you remove the WIRE to the spark plug ( not the plug itself ) and oil jumps out, there is a cylindrical seal that needs replacing and one does not need to even remove the cylinder head.
I have the same problem with my corolla. On the other hand if Biggy meant when removing the SPARK PLUG oil was on the contacts....

Posted on Sep 07, 2008



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SOURCE: Removing Toyota Corolla 1990 Car Stereo

the plastic frame around it should snap out with a flat head screwdriver to get access.

Posted on Dec 19, 2008



  • 3 Answers

SOURCE: Sensor Wire/Fan 1990 Toyota Corolla

These wires could go to a temperature sensor for the radiator fan. The best thing to do is to bypass the sensor and straight wire the fan to come on when the engine is running. I had one to over heat because the sensor went bad and wouldn't let the fan come on.

Posted on Feb 07, 2009

Bob B

  • 272 Answers

SOURCE: 2000 Toyota Corolla P0171

When the fuel trim is high teens or in the 20s then its the MAF that the problem. If fuel trim is normal, 2-5 then its the O2 sensor.

Buy "Electrickleen" at the parts store.
Remove the MAF sensor, WHILE COLD, and blast the wire inside with cleaner.
The "hotwire" gets gummed up and changes the resistance of the wire so you get a bad input to the ecu and it trys to lean out for a rich condition that doesnt exsist.When it cant adjust anymore it trips the po171 code.

Posted on Jun 01, 2009

SOURCE: Hi, I've sent my toyota

To have so many different codes at the same time indicates that the first place to start looking is the wiring harness itself. Locate the MAP (manifold air pressure sensor - code 31) and IAT (inlet air temperature sensor - code 24) connections. Disconnect and reconnect each sensor a few times and check that the connecting socket and pins are clean and free of corrosion - the codes indicate intermittent breaks. Check all fuses are clean and well mounted. Examine wiring harness for chafing, abrasion and signs of wear. Any intervening connections between the wiring harness and electronic control unit (ECU) need to be checked over and should be free of oily grime.

Posted on Nov 17, 2010

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I need the list of codes for a 1994 corolla


DTC NUMBER TROUBLE AREA 12 clip_image001.gifRPM signal 13 clip_image002.gifclip_image002.gifRPM signal 14 IGN signal 16 ECT Signal 21 Oxygen sensor signal 22 Water temperature signal 24 Intake air temperature sensor 25 Air / Fuel ratio lean 31 Vacuum sensor signal 41 Throttle sensor 42 Vehicle speed sensor 43 Starter signal 52 Knock sensor 51 Switch COND

Sep 29, 2014 | 1994 Toyota Corolla

1 Answer

Location air temp sensor

Location of Intake Air Temperature Sensor:
The intake air temperature sensor, which is mounted on the mass air flow meter, monitors the intake air temperature. The intake air temperature sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air. When the intake air temperature becomes low, the resistance of the thermistor increases When the temperature becomes high, the resistance drops .

Apr 24, 2014 | 2009 Toyota Corolla

1 Answer

Corolla 2005 Engine light on (Error code P0140). I have read that the transmission should not be functioning OK but my car is doing the shift smoothly. The light goes on and off with a few days period. Is...

P0140 - O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2

Possible causes- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks

Dec 07, 2012 | 2005 Toyota Corolla

1 Answer


mass air flow sensor measeres the air intake for the engine not sure exactliy where its located on a toyota corolla but it is usualy located between the air filter box and the throtel body or some times its mounted on the throtel body

Jun 09, 2012 | 1999 Toyota Corolla

1 Answer

What is needed to fix fault codes 14 and 24 for a 1994 toyota corolla

The following is from a Haynes manual for 1993-1996 toyota corolla and geo prism:

Code 14: ignition signal. No ignition signal to the ECM. Check igniter or circuit, ignition coil, ig. switch or circuit, ECM (engine control module or "computer")

Code 24: intake air temperature sensor. Open or short in the intake air temperature sensor circuit. Check intake air temp. sensor or wiring to ECM.

Jan 27, 2011 | 1994 Toyota Corolla

2 Answers

2006 toyota corolla 1.8 sohc p0171 found dirty mass air flow cleaned results the same replaced it 2 days go by and again the same code pops up p0171 fuel fystem too lean bank 1 the down stream o2 is...

Either the mass-air sensor is bad, which normally throws a mass-air voltage code, or you definitely have an air leak post the mass-air. Smoke the intake manifold with a smoke machine or spray the whole intake to head, including to brake booster with brake cleaner and listen for a change in idle. Focus on the gasket surface of the intake manifold.

Dec 15, 2010 | 2003 Toyota Corolla

1 Answer

My engine light is on, and its code P0171 (System too lean Bank 1). Its toyota corolla VE 200. How do i fix it ? I am looking for mass air flow in my car ? I dont know where it is located ?

Remove the two screws that hold the MAF on the intake near the air filter, go to an auto parts store or electronic supply place and get a can of spray electronic cleaner, spray the inside of the air flow sensor, you need to get it into the small opening where the platinum sensor wires are, they get coated with dust and other gunk and confuse the computer because it gets the wrong signals,clean the wires until the look shiny, reinstall it, you may be able to clear the check engine light by disconnecting the battery and waiting 10 seconds, also replace the air filter and you should be good to go. ------- Check fig:-- bcc2a69.gif
Mass air flow sensor. Located in the intake near the airbox. 2 screws hold it in. Thanks.

Sep 26, 2010 | 2000 Toyota Corolla

1 Answer


For the 1990 Toyota Corolla 1.6L In-Line 4-Cylinder:

Firing Order:
Rotation: Clockwise

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at!

Apr 19, 2010 | 1990 Toyota Corolla

1 Answer

Toyota Corolla GL 90 model

Look for a valve in the hose connected from the brake master's hydrovac going to your engine's intake manifold . check if it is still working, the valve traps the vacuum from your manifold to the hydrovac. Replace valve if air passes it on both sides.

Oct 13, 2008 | 1990 Toyota Corolla

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