I have a problem with my toyota rav4 1996 the check engine light is on it gives me on the scanner the error code 33. Any help will be appreciated. Regards

If you mean the "Check Engine" light, your car's onboard computer has detected an error in one of the car's systems. When this happens, the Check Engine light illuminates and the computer sets and stores an error (DTC) code that can be read and interpreted by attaching a code scanner. Most larger auto parts stores have these scanners available for use at their location, and many will even read and interpret the code(s) for you (they ARE in the business of selling auto parts, right?) Good luck.

if check engine comes on, buy an obd2 scanner at walmart and scan the engine for fault codes

Hi Eric:
If the EPC light or check engine light is on it will show up with a generic OBD2 scanner, I suggest visit some Autozone or Autoshop with OBD Scanner Reader to know exactly what fault code is stored there.

We could give you a better idea what's wrong once you can give me a fault code number.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

Hi Eric:
If the EPC light or check engine light is on it will show up with a generic OBD2 scanner, I suggest visit some Autozone or Autoshop with OBD Scanner Reader to know exactly what fault code is stored there.

We could give you a better idea what's wrong once you can give me a fault code number.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Check engine light comes when there are error codes stored in the cars computer.It's advisable to get car scanned at diagnosis center to get error codes, At diagnosis center you will receive the error code. As per the error code it will detect the exact faulty part in the car due to which the problem is occurring. For more help: --- at www.autozone.com it's absolutely free to get car scanned.

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You need to get a scanner hooked up to see what error the computer has found. It will give a code. Some auto parts chain stores will do this for free.

The check engine light is triggered by trouble codes which means something is wrong with the emmissions systen, transmission, motor sensors etc. A dirty oil filter will not trigger a code. You need to scan the car with an OBDII scanner to get the codes. Once oyu have the codes post them here and we can help you. If you don't have a scanner you can take the car to your local auto parts store, they'll scan for free and give you the codes.

The code indicates a leak in the evaporative system. 90% of the time it is a faulty gas cap.

There is no built in way of checking codes without the use of a scantool.
There are several low priced but very basic scanners available at auto parts stores, ranging from $25-75 for basic scanning..

Many auto parts stores will scan your codes for you free of charge (in hopes of selling parts).
AutoZone, Advance Auto Parts, and O'Reilly are 3 stores that offer free check engine light scanning.

the computer often stores minor error codes and indifferences to help in trouble shooting in case a major problem occurs