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  1. R

    P0455, changed gas cap but still get code

    I've been fighting with a stubborn P0455 that's still there even after replacing with an OEM gas cap. If it's not the gas cap, what else can I check? What conditions that trigger the PCM to do an EVAP test? Is there an easy way to trigger one (without just random driving, waiting & hoping)...
  2. R

    Trying to trigger EVAP check. Drive cycle conditions that trigger a PCM EVAP Test?

    Hi all, My fiance has a 99 Protege 1.6L that's been throwing P0455 (EVAP Leak). I checked and cleared all the hoses to the charcoal canister, etc & put on an OEM gas cap. So far results are inconclusive as it's still thrown the code a few times, and NYS emissions inspection is coming up soon...
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    Block/head gasket, and timight chain/non-interfrence engine?

    I am looking for some semi-technical info about a 1999 Mazda Protege LX. 1) Is the engine block aluminum or steel/cast iron/etc? 2) Is there a recommended mileage at which to replace the engine head gasket? 3) I've heard the engine is a non-interference design, meaning the pistons are...
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