2003 Toyota RAV4 - Page 5 - Answered Questions & Fixed issues
2003 Rav4 ecu
You may try contacting Richard from Otherdeal.com. They are in Puerto Rico, but they successfully fixed my friend's ecu that had that same part number. They were the only ones able to fix it. The others turned away because it was not for a rav4 of the usa, but from Chile and the others told that they could not fix it because they had no ways of resetting it.Cheers,John P.
Timing marking 1az engine
Accordint with Repair Manual/ENGINES + AUTO.TRANS/1AZ-FSE...
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4/20/2016 9:04:35 AM •
2003 Toyota RAV4
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Answered
on Apr 20, 2016
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4,819 views
I am looking for the oxygen sensor in the 2003 Rav 4 toyota.
you will find the oxygen sensor on the pipe after the cataletic converterit looks like a spark plug with a long wire on it its going to come out hardyou will need a goog 13/16 wrinch 6 sided works best make sure the batteryis unkooked in stall the new one hook up the new wire rehook the batteryand restart the computer will have allready reset it self from the batteryhu hooked that resets the computer ther new oxy.sensor will start readingcorectly and your proublam is fixed thank you bob
Where is the oil filter
Hello, under the vehicle in the front of the engine. It will be located on the passenger side front of engine and it is a small oil filter. GB...stewbison
How to remove front headlight
Hi,
1 Open the RAV4's hood. Locate the
back of the headlight assembly, just behind the headlight. You should
see a ring-shaped plastic cover.
2
Turn the locking plastic ring clockwise about 1/2 inch and it should pop off.
3
Remove the rubber grommet covering back of the headlight. Simply pull it out of the headlight assembly.
4
Depress the spring latch holding
the bulb in place behind the headlight. This is a wire latch that looks
somewhat like a bent paper clip. Press it down and move it to the side,
away from the light bulb. It should come free and flip open, freeing
the bulb.
5
Disconnect the light bulb from
the plug. Replace it with the new light bulb, and replace the latch and
rubber grommet. Replace the plastic ring cover and turn your headlights
on to ensure proper installation.
Thanks
A service on my Toyota
OK a bit of background. The oxygen or lambda sensor determines the amount of air in the exhaust gases. It does this by producing a voltage inversely proportional to the amount of oxygen present. When the oxygen is low the voltage is about 1 volt and when the oxygen is high it is less than 0.1 volt. The ECU uses this feed back to continuously adjust the amount of fuel injected for combustion. These sensors only work effectively when they are hot. The manufacturers of sensors include a heater element within the sensor tip to preheat the sensor at start up when the engine is cold. Most modern oxygen sensors have four wires to them, two for the heater (often of the same color) and two for the oxygen sensor circuit. If the heater element fails the sensor is unable to work effectively when starting the engine up. In this case the sensor reports a low voltage which the ECU reads as "high oxygen in the exhaust" or a 'lean' condition and tries to compensate by injecting more fuel. When the engine eventually warms up and the exhaust gases get hot the sensor then begins to function and the ECU will reduce the amount of fuel being injected once more.
It is perfectly safe to drive the vehicle. However if you are making lots of short trips in which the engine rarely gets to reach hot running conditions your fuel consumption will suffer badly as the ECU will be injecting way more fuel than you need. You will also find that your exhaust smells of un-burnt fuel and your idle maybe a bit fast and lumpy with the over rich injection cycles.
Often a 'bad heater' can be just down to a bad connection due to dirt, or more often corrosion, in the plug/socket to the actual sensor and a few cycles of connecting and disconnecting it can fix it. Replacing a sensor is not catastrophically expensive, $100 or so for the part (Denso or NGK) but that can rise if the garage also fits it.
Finding the location of rav4
There are two...Coolant Temperature Sensor/Switch (For Computer)
Coolant Temperature Sensor/Switch (HVAC)
Here is a picture of both....Hope this helps you ??
6/21/2011 2:16:06 PM •
2003 Toyota RAV4
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Answered
on Jun 21, 2011
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4,493 views
Where is the external fuel filter located for a
the only fuel filter on this vehicle is inside the gas tank. it is a fuel pump and filter and fuel gauge sending unit assembly but you can replace certain parts seperately...........i hope this info helped you good luck and let me know if i can help in any other toyota concern............
6/18/2011 3:59:33 AM •
2003 Toyota RAV4
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Answered
on Jun 18, 2011
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1,013 views
I have toyota Rav4 2003
if all the other doors are opening and at the master switch it want work either it will need a new door lock actuator
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