SOURCE: p1135 code 2002 toyota highlander
P1135 is the A/F sensor Bank 1 Sensor 1. Unfortunately, it is the sensor on the back side of the motor, in the manifold against the firewall. Its extremely common, and its not very difficult to replace, just dont try doing it with the motor hot. If you installed an aftermarket sensor, or an Oxygen sensor instead of A/F, you will still have problems. old exhaust gaskets tend to crumble, dont worry, your air mix didnt cause that. Which sensor was replaced?
SOURCE: i am looking for a diagram on a 02 toyota
You don't need one. Get a T belt from toyota. It has 3 white lines on it and and arrow mark. 2 lines are solid and one is broken. Put the arrow facing away from the engine. The cam gears have a dot punched into them near a certain tooth. This is where the solid white lines will line up with. The crank gear will have a dot also. It will line up at 90 degrees from the top, towards the front of the car. This is where the broken line will match up with. With the belt installed with all lines on their proper dots and arrow away from the engine, you valve timming is correct.
Of course you need to remove and compress the tensioner also. I assume you know this already since you didn't ask.
SOURCE: need to change spark plugs in highlander.
Those back plugs are a bear to get to but they can be got. There is no easy way. You need to get your hands back there and pull the wires off and use whatever combination of extensions to do it.
SOURCE: oil burning in my 2001 toyota highlander 84000 miles. bad rings.
You need to talk to a dealer.
SOURCE: What mileage do change 2006 toyota highlander
i would chande the plugs at or around 60,000 to 70,000 miles. this is about the correct mileage. they may last longer but not worth the expensence of converter damage due to misfire and also gas mileage loss.
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