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ported throttle body problem

This is a discussion on ported throttle body problem within the External Engine forums, part of the LSx Technical Help Section category; I just put a new ported throttle body on my car and threw a code saying it was lean. I ...

  1. #1
    Member ls1wallen's Avatar
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    ported throttle body problem

    I just put a new ported throttle body on my car and threw a code saying it was lean. I have have tried the un hooking the battery to restart the computer no help. Any ideas?

  2. #2
    LSwut tep98ws6's Avatar
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    If you look at the TB... Is there air getting around/past the blade? It'll act as a giant vacuum leak and throw a lean code.

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    Member ls1wallen's Avatar
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    Its been like 3 weeks and i still cant figure out the problem. Will driving around with a lean code hurt anything.

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    We'll be back... GatorSS's Avatar
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    Did you change anything else besides the throttle body? Did you check for any vacuum leaks? What size is this new ported throttle body? Significantly larger than stock? Probably so, I presume. Then you need a new tune created and loaded onto the VCM.

    Whenever I do such a mod, I always re-tune my vehicle using my tuning software.

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