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no idea

This is a discussion on no idea within the General Help forums, part of the LSx Technical Help Section category; i have a 99 camaro ss always when it rains it starts to act up on me as if it ...

  1. #1
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    Exclamation no idea

    i have a 99 camaro ss always when it rains it starts to act up on me as if it were choking i floor it and it acc but there is a missfire i park it and try later and as if nothing happen now one year later changed air lid and doing the same as like when it rains what is going on i get a p108 code and p 405 any help gladly app

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    Moderator Cutlass's Avatar
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    2001 Silverado Z71

    If you get a misfire when it rains, that usually means the spark plug wires are bad. It might be time to replace your plugs and plug wires.

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    When you change out the plugs and wires, here are a couple of tips:

    1. Number 8 (passenger side rear) is generally easiest to get at from underneath the car. Removing the coil packs will give you some added working space also. Be careful of the plastic pins that hold yor cowl seal in place -- they will make you bleed. I always pop ours up with a flat blade screwdriver before working in that area.

    2. Use a small dab of anti-seize on your thread plugs and double check your gaps before installation. Lots of guys like the NGK TR-55's, others prefer the Iridiums.

    3. Before installing yor plug wires, a little bit of di-electric grease in the plug boots will help seal out moisture and also will allow for easier removal down the road. The plug torque is 11 lb.ft.

    4. When installing the new wires, you want one "click" on the plugs and two "clicks" on the coil packs.

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    Quote Originally Posted by Cutlass View Post
    If you get a misfire when it rains, that usually means the spark plug wires are bad. It might be time to replace your plugs and plug wires.
    i just replaced plugs and wires. lol the car has a tune and cam lots of pepole have told me that thats the reason with rain or cold weather but i dnt tink so, and its not really a missfire but a back fire as if it were choking. thks

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    Quote Originally Posted by noshowfor24 View Post
    i just replaced plugs and wires. lol the car has a tune and cam lots of pepole have told me that thats the reason with rain or cold weather but i dnt tink so, and its not really a missfire but a back fire as if it were choking. thks

    Would not hurt to go over your plugs and wires. Make sure the plugs are tight and that the wires are fully seated on the plug and coil.

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    any plug wires up against the headers??? wait until it's dark out and fire her up and look for arching...

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    well i found the problem for the miss fire the rear sensor on the intake was not inserted in but wonder if this is the way its supposed to be looks likeit just slips in is this so or should it be a tight fit any help or advice will be app as far as the rain well will have to wait and see.

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    Are you talking about the MAP sensor all the way at the back of the intake?

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    yes

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    Have never had to remove mine, but from what I recall it looks like you press it into the hole and then turn it to lock it in place. Anyone?

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    well i will try that but all i did was put it in the hole hopefully that will take care of the mystery prob. thks for ure help this site is awsome not to mention the crowd!!!

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    Senior Member JayTA98's Avatar
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    The sensor has a small rubber gasket around the part that goes in the hole. There is also 2 tabs that hold the sensor in. If the taps are broke or weak and the gasket is worn it might be causing the sensor to pop out.

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    Spaz is My Mentor SMWS6TA's Avatar
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    It should just click in no turning at all.

    Are you talking about this that is circled in yellow?



    OR

    This that is on the back of the intake?




    If it is the 2nd one just click, If it is the 1st on then you have a bolt that secures it to the block.

  14. #14
    Senior Member JayTA98's Avatar
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    Mean Black
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    Quote Originally Posted by SMWS6TA View Post
    It should just click in no turning at all.

    Are you talking about this that is circled in yellow?
    Click for full size


    OR

    This that is on the back of the intake?

    Click for full size


    If it is the 2nd one just click, If it is the 1st on then you have a bolt that secures it to the block.
    +1 is one tab that holds it. Thanks for the clarification. If it is the 1st one and the tab is broke you can hold it in place with cable ties.

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    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
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    BTW, you see that little tube below the sensor in the second pic. If your HVAC doesn't work, check that SOB 1st. It could be that the hard plastic hose for the HVAC has come out or if you do a Intake swap you can easily forget that SOB. That is one of the steps that is forgotten on the Intake swap thread and ls1howto.com

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