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    Gen 3 Throttle Idle Issue

    Fuel trim diagnosis
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    Gen 3 Throttle Idle Issue

    I don’t remember having a choice since they were not symmetrical. They could only go on one way. Do you have a photo of your tear down, before you started putting it back together?
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    Gen 3 Throttle Idle Issue

    Thinking about this more, if this problem didn’t exist before the maintenance you did, I doubt an exhaust leak or bad o2 sensors is the cause. I’ll bet you still have an air leak from your intake work. Your exhaust is getting hot because you are running super lean, to the point where not even...
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    Gen 3 Throttle Idle Issue

    Not necessarily. I’d do two more things: 1. do a diagnostic check on the oxygen sensors and 2. check for an exhaust leak between the engine and the first (upstream) oxygen sensors. Could you post a screenshot from you gauge, showing fuel trims at idle? You should have a short and long term %...
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    Gen 3 Throttle Idle Issue

    How old are your oxygen sensors?
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    Gen 3 Throttle Idle Issue

    Fuel trims pegged at their max is the clue to solving the problem. Your computer thinks your truck is running lean so it’s dumping tons of extra fuel in there, but if you are smelling fuel, that tells me it’s not running lean. Exhaust manifold gasket leak, down pipe leak, which is letting...
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    Gen 3 Throttle Idle Issue

    The video you posted of it spazzing out, does it not do that if you turn key right to crank and start it up? Also can you pull the intake tube rubber so you can see the butterfly and operate it with the pedal, key on engine off, to verify that it moves smoothly through the whole range?
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    Gen 3 Throttle Idle Issue

    On my car it’s inside the cabin, up under the dash / foot pedal area near the pivot point of the gas pedal. I have no idea where yours might be.
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    Gen 3 Throttle Idle Issue

    Not sure if you checked this yet or if it would matter, I believe your throttle body is fly by wire, have you checked your pedal position sensor? If that was sending a bad signal maybe it could be causing the thing to spazz out. What does your gauge tell you TPS is at when you start it up? Are...
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    What brand/viscosity oil in your Montero?

    To me, oil changes and filters are more important over the long run than oil type or brand.
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    Gen 3 Throttle Idle Issue

    I do whatever the FSM tells me to do. I don’t believe it was called for on my engine (6G74) for any of the intake manifold or plenum gaskets. You will want a new set of gaskets as well when you do it.
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    The old 1999 build thread

    Do I actually see rust on that skid plate?
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    Gen 3 Throttle Idle Issue

    I wouldn’t do anything else until you redo your gasket job using a torque wrench, the FSM and a new bolt. There is redundancy and extra strength built into many things but an intake manifold isn’t one on my list. You need everything to be perfect.
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    Gen 2.5 getting power up to the roof

    Just looking for some ideas on the best ways to get a power drop up to the outside of the truck on the roof for some accessory lights. I’m guessing I need to drill a hole somewhere but where is the best place to do it, avoid leaks, etc Thanks
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    Gen 3 Throttle Idle Issue

    Um, so are you saying you no longer have a bolt in that location? I don’t know if your engine is like mine with the washers, I was just using that as an example.
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    Gen 3 Throttle Idle Issue

    Did you do any work to the throttle body On the first go around, or did you just remove it as one unit and put it right back on? Looks like it has 6 pins on the connector. Have you inspected them? Anything bent corroded or damaged? When you say you got a new (used) throttle body, do you mean...
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    Gen 3 Throttle Idle Issue

    Yes you should have used a torque wrench. Intake manifold gaskets are sensitive, bolts are easily stripped. If you have access to the mitsu procedure follow it precisely. I’m not sure how far down you went but as an example, my lower manifold requires new crush washers every time you remove the...
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    Gen 3 Montero Throttle Body Differences

    Is the throttle body fly by wire or still direct mechanical operation? If it’s fly by wire maybe you have a bad pedal position sensor.
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    Montero Gen 2.5 Key Fob Programming?

    There were a few different systems installed stateside so you will find differences with the process. You may need to try a few before you get it, esp. if you don’t know which system your truck has. Also if your door locks aren’t working correctly you won’t be able to do it.
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    Gen 3 Montero Throttle Body Differences

    Sounds like a great question for a Mitsu dealer parts desk to help you with.
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