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P1571 on a 360 spider

Discussion in 'Technical Q&A' started by m302ho, Oct 1, 2019.

  1. m302ho

    m302ho Rookie

    Oct 1, 2019
    5
    Québec
    Full Name:
    Stéphane Langlais
    #1 m302ho, Oct 1, 2019
    Hi, I have a 360 spider 2002. I replace spark plug, valve cover gasket and power steering pump. After all this, the engine run on 4 cylinder's.

    The only fault code I have is P1571 immobilizer (b1) active in the right engine motronic. I use a autel scan tool.

    I check all wire, check fuse, the key forb works, the engine start, but run rought.

    Any idea?
     

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  2. 24000rpm

    24000rpm F1 Rookie
    Silver Subscribed

    Aug 31, 2012
    3,947
    China and California
    #2 24000rpm, Oct 1, 2019
    each time you forgot to press the fob to fail to start the car, the error would log. So its not really a thing u need to fix.
     
  3. m302ho

    m302ho Rookie

    Oct 1, 2019
    5
    Québec
    Full Name:
    Stéphane Langlais
    #3 m302ho, Oct 2, 2019
    Yes you right, but yesterday I only have this code.

    This morning new fault code and I make a check with a laser temp meter. I only have the 2 front cylinder work's in both side. No wrong noise, only big back fire at idle.
    The new code is:
    Left motronic
    P1427 canister purge valve (I don't think so)
    P1104 air flow meter, I interchange the 2 meter and the code still the same side
    P0051 and P0057 O2 sensor heater s1 and s2
    Right motronic
    P0116 water temp sensor plausibility

    I start to recheck all wiring, connector and spark plug.
     
  4. radlu

    radlu Formula Junior

    Jun 6, 2005
    343
    #4 radlu, Oct 2, 2019
    He's running on 4 cyl
     
  5. Qavion

    Qavion F1 Veteran
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    Feb 20, 2015
    5,139
    Sydney
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    Ian Riddell
    #5 Qavion, Oct 2, 2019
    He knows. 24000 rpm said "So its not really a thing u need to fix." He was just saying the code had nothing to do with his problem.

    So cylinders 3, 4, 5 & 6 are inoperative?

    Are you 100% sure you put the spark plugs in the right positions?
     

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  6. m302ho

    m302ho Rookie

    Oct 1, 2019
    5
    Québec
    Full Name:
    Stéphane Langlais
    #6 m302ho, Oct 3, 2019
    Yes the spark plug fit is ok. I try move the spark plug and coils. The same 4 cylinder's don't work's. So is not a spark plug or ignition coil trouble. Next check the injector and leak down test.
     
  7. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Sep 1, 2013
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    Western Mass
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    Raimondo
    #7 360+Volt=Prius, Oct 4, 2019

    Take a step back and think about this. It’s not 4/8 injectors so bad the cat isn’t running.

    So car was running fine before you did the work? If you answer yes, then it’s something you did or inadvertently touched/broke/disconnected during the work.

    So you are running on cylinders 1,2 & 7,8. How do u know this?

    Did you happen to change the timing belts also??


    Sent from my iPhone using FerrariChat
     
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  8. m302ho

    m302ho Rookie

    Oct 1, 2019
    5
    Québec
    Full Name:
    Stéphane Langlais
    #8 m302ho, Mar 20, 2020
    Hi, just for close the topic properly, the car run fine at start. I replace a lot of parts, timing belt, power steering pump, valve cover gasket, cam plug, water pump anD more.

    I know I have 4 cylindre fine, 2 on both side. Easy check with a laser temp reader.

    Make a lot of check and find the trouble and find the cause. On both side, 2 ingnition coil wiring is inverte. Somebody at the shop take a look at the spark plug and made a mistake when is connect the coil.

    Stupid trouble and not easy to find, at the begining I stick a number on the wire to make sure everything is ok. When I connect the wire's, I remove the sticker. I never think somebody disconnect the coil and connect back wrong place.
     

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