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HouseC ... 9/3/2010
2004 Mazda RX-8 Base 2Cyl1.3L - Engine
No start, no spark, no fuel pressure - cranks fine
One day car would not crank (just a single click), battery was not the cause as there was no voltage drop when cranking, changed starter and battery and car was fine after job was done - started normally and ran fine. Later on the same day, the car would not start but this time the engine would crank just fine. Scanner showed P0336 (crank sensor). Replaced crank sensor and still the same with the same code. Did continuity test of the two wires that run from the crank sensor to the PCM and wires tested perfect, neither wire was grounded. Customer had car towed to the Mazda dealer. Anybody know what is wrong?
9 Answers
  • HouseCallAuto
    HouseCallAuto 9/14/2010
    You will never in a million years believe this one. The starter I installed (aftermarket reman.) is "incompatible" with the minimum RPM requirements of Mazda. In other words, if the original Mazda branded starter cranks the engine over at lets say 240 RPM and an aftermarket starter is installed and lets say that starter cranks the engine over at 235 RPM, the PCM is programmed to ignore the crank sensor signal until the RPM is within minimum spec. Mazda installed their starter and the car is fixed. The starter I had installed had showed no sign of the cranking RPM being weak in any way. I refunded her money that I billed her. Even the customer was in shock! I could never win this one. Who buys dealer starter motors?
    CVO 11/24/2011
    Maitre HCA. Happy Thanksgiving to you and your family.
  • jeffery1621
    jeffery1621 10/24/2010
    could be your timing belt is broken
    HouseCallAuto 10/24/2010
    As you can see in the above post the car has been fixed. Read the post.
  • Nissan Technical Advisor
    Master HCA, Happy Holidays to you and your Family.
  • flatcroaker
    flatcroaker 1/25/2011
    mazdas live in their own lil world. cause i gots me one and i know !!! :}
  • gene misurek
    gene misurek 9/23/2011
    look at schematic possible relay that is common to both fuel pump and ign.
  • jkw8302
    jkw8302 10/1/2011
    hi there you helped me out on my gmc jimmy,i was wondering if you would look at my new post and see what you think thanks
  • Bill
    Bill 10/5/2011
    Who the hell is this Kenneth
  • eselejavier
    eselejavier 1/26/2012
    check all about the fuel pump, fuse , relay , power,filter.
  • Pepe
    Pepe 4/1/2014
    Woulda never seen that coming. lol. Thanks for letting us know. For future reference, that explains why there was no spark or fuel.

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