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H22 Prelude ecu

Discussion in 'ECU's, Electronics, and Tuning' started by jam05pr, Apr 12, 2004.

  1. jam05pr

    jam05pr Member

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    Hi, I just had a quick question regarding the p13 ecu. I noticed that the p13 has a dual stage vtec and some of the other honda vtec ecu's only have a single stage vtec. Why is there a difference and which is better?
     
  2. HardLowrdRanger

    HardLowrdRanger Member

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    Dual stage vtec? hehe... You must be confused... The P13 controls VTEC and the Intake Air Butterflies on a Prelude, there's not two stages of vtec engagement... The IABs are used to switch between short and long runners in the intake manifold which gives gains in low end torque and allows them to keep top end performance...
     
  3. jam05pr

    jam05pr Member

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    I kind of thought the whole dual stage vtec sounded kind of weird. Thanks for clearing that up for me.
     
  4. HardLowrdRanger

    HardLowrdRanger Member

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    Hey, no problem... It's a common myth going around that was started by some eBay sellers to make their P13 ECUs more desirable... Incorrect info reaches so far sometimes it's amazing...

    If you need any other info on ECUs check out the resources at www.pgmfi.org
     
  5. pissedoffsol

    pissedoffsol RETIRED

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    yup. IAB are on gsr and h22 intake manifolds.
     
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