Toyota Repair Problems? Ask a Mechanic for Answers ASAP
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90% of the time when you see these two codes in combination with each other you are going to find that you have a faulty bank one sensor one oxygen sensor. The P0130 is for the heater side of the oxygen sensor in P0133 is for a slow response time to the computer. Proper testing of the oxygen sensor will confirm this. Bank one sensor one is the sensor before the catalytic converter.
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Is this a four cylinder or V6 engine?
No problem the oxygen sensor is located in the exhaust system just before the catalytic converter. There is a four wire connector that goes to the sensor. You can buy the sensor at most part stores or you can buy a Toyota factory sensor from www.metrotoyotapartsnow.com . If you order online let them know that I sent you, they have good prices. The tuneup parts and work that you did probably was unrelated to the sensor failure. It probably would've happened anyway.
Even though there is a bank one and bank two on this engine it only uses one sensor to monitor both banks. If you follow the exhaust pipe from the exhaust manifold on the right side of the engine down towards the back the oxygen sensor is mounted in this front pipe. It is approximately 2.5 inches long with four wires coming out of it to an electrical connector.
In a worst case scenario the oxygen sensor could cause a lean misfire. This would be very unlikely though. The sensor only becomes difficult to change if it is frozen in the pipe. Once the connector is disconnected the sensor unscrews from the pipe. There is a special socket that you can use. Or a simple 7/8 box wrench slid over the wiring will work. Because it is a truck is easy to get underneath.
If you are still getting the misfire codes after the coil and spark plug replacements there may be an issue with the injectors. If the injectors are the original with that kind of mileage they may be restricted. If you are just getting a rough idle the idle air control valve that is bolted to the bottom of the throttle body is known to get gummed up and cause the idle to stick low which will cause a rough idle. I would pull the throttle body and clean the throttle plate and the idle air control valve.
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While it is idling rough spray everything down with carb cleaner. (ONLY IF THE SPARK PLUG WIRES ARE NOT ARCING AND STAY AWAY FROM THE ALTERNATOR OR FIRE WILL RESULT) if the idle smooths out then they are leaking.