Question about 1993 Toyota Tercel

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Still getting code 26 after changing O2 sensor. 94 tercel. had 25 and 26 now only 26

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If it is the o2 sensor heater circuit,the car needs to be idled for 2 minutes after cold start then driven for 3 minutes at 60kmh.that will set the monitor.

Posted on Apr 14, 2010

Testimonial: "My thanks Kirtec, I will try this and hope it will do the trick. Thanks again for taking the time to reply with your advice and recommendation. TF"

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What does obd 1 code 25 and 26 mean?


EOBD II Error Code: 25
Description:
System too Lean, Bank 1
Possible Causes:
- Intake/exhaust leak.
- Secondary air injection (AIR) system.
- Manifold absolute pressure (MAP) sensor.
- Mass air flow (MAF) sensor.
- Fuel pressure/pump.
- Injector(s).
- Evaporation emission (EVAP) canister purge valve.
- Heated oxygen sensor (HO2S).
- Contaminated fuel.

EOBD II Error Code: 26
Fault Location:
System too Rich, Bank 1
Description:
- Evaporation emission (EVAP) canister purge valve .
- Fuel pressure.
- Injector(s).
- Heated oxygen sensor (HO2S).
- Contaminated fuel.
Hope that works.

May 24, 2014 | 1995 Toyota 4Runner

1 Answer

Engine code 28


Are you sure it is a code 28? I only ask because my book doesn't show a code 28 in regards to this problem. I show codes 25 and 26 that may relate to this problem. But before replacing o2 sensor, there are other probabilities for this code showing up. They would be: Injector or injector circuit, Coolant temp sensor or circuit, Air temp. sensor or circuit, Airflow meter, Cold start injector, ECM (Electronic Control Module- THE BRAIN) Or the o2 sensor of course. Plz save your money before purchasing o2 sensor and check possible related items first.You may find o2 sensor is not at fault. Hope this helps.

Nov 14, 2013 | 1993 Toyota Camry V6

1 Answer

Why is the check engine soon light on? 94 toyota tercel. I took it to a parts store to have the code checked and they told us that we need to know where the port is. Does any one know where the diagnostics...


To give you a better jump in the direction of the repair, your vehicle's computer operates OBD I, your average auto parts store will only carry OBD II equipment. Your ALDP should be located on the drivers side under the dash near the door. This is the most typical location for it, however, not the only location. From time to time you may find on either side of the center console under the dash, closer to the firewall. Some vehicles even have a special port on the dash near the drivers door just for the link. You can buy a OBD I link that will attach and put the computer into diagnostic mode. Any such link should have a code guide as well. When you attach the jumper and turn the ignition on, the MIL (maintenance indicator light) will begin to flash. You will see breaks in the flashes to distinguish numbers. This will give you the readout of the trouble code. If the system tells you that the vehicle has an O2 sensor problem, simply replace the corresponding sensor. As OBD I only reads system failures and not variations in data, the computer will only trigger a MIL when a sensor fails. Hope this helps.

May 31, 2010 | 1994 Toyota Tercel

1 Answer

I have a 1990 Jaguar Sovereign, 98,000 miles. The problem I'm having is the engine starts and runs, but it lopes at idle and runs rough, seems to be running too rich. I was getting fault codes 44, 37,...


I would change the air filter and clean the fine mesh covering the air flow control unit.
Make sure the connections are good as the sensor screen is tied to the O2 sensor. A new O2 sensor and dirty screen would give you poor fuel burning as the air fuel mix would be bad, and the O2 sensor would read the need for more fuel.......poor economy and running rough as it would not be clean burning.

Apr 26, 2010 | 1990 Jaguar XJ6

2 Answers

My engine light go on tercel 98 code po136


Sounds like the rear O2 sensor is at fault, you may try to replace it yourself, if you are mechanically inclined.

Sep 16, 2009 | 1998 Toyota Tercel

1 Answer

Code


have you checked your O2 sensors? usually a faulty O2 sensor will trip a lean/rich code.

Feb 21, 2009 | 1996 Toyota Tercel

2 Answers

O2 sensor on a 1994 toyota tercel


Usually the O2 sensor will be on the exhaust manifold close to the engine, I'm going to assume you have a pretty good idea of what you are doing so if you need more details don't hesitate to ask.

Oct 30, 2008 | 1994 Toyota Tercel

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