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Robboo

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Posts posted by Robboo

  1. After reading this its good to know I'm not the only one with this issue.

     

    On tickover my 350z has a misfire, no rev change just feel a judder through the car randomly. Only seems to happen when up to operating temperature and in neutral.

     

    I haven't begun tracing it as yet but I will soon using the information above.

     

    I've noticed quite a bit oil around the oil dip stick area but this could be due to the crap design as I've checked oil recently.

     

    Ill keep an eye on this thread as I'm thinking trace the plug or coil and replace whichever

     

    You can test the coilpacks (as long as youre sure its not sparkplugs causing the trouble, replace them first) by unplugging the coilpacks one by one with the engine running (make sure the misfire is there aswell, not sure if it works if the engines running normally) to test for a drop in revs. If a coilpack is faulty and you unplug it there wont be any drop in revs. Replace that one :)

     

    Remember do this one by one and dont keep them unplugged for that long with the engine running. You can test the ones under the air intake by removing the intake and unplugging the MAF so the engine still runs, you will need to get the fault codes cleared afterwards obviously.

     

    This is how I did mine and found the 2 faulty coilpacks :)

  2. Just an update, one new coilpack fitted and just needs one more after doing the coilpack test trick again (properly this time!). This would explain the p0300 code - random/multiple cylinder misfire. Soon as the second coilpack gets here & fitted I'll see if ive finally got rid of the misfire!

  3. Yup its noticeable on tickover, worse when driving though.

     

    And I think its the cylinder directly under the throttle body (no.4? 6?).

     

    And i couldnt tell, I just got code p0300 again! Ive purchased a coilpack anyway, and if that doesnt work il have to swap the rest out then look at injectors I guess

  4. Okay so swapped coil pack over, no difference same p0300 code.

     

    Also it was fuel on the tip of the plug not oil, only oil around the plug and coil side. Fuel is obviously from where its misfiring?

     

    Even tried a trick I found to unplug the coil while it's running/misfiring to see if the revs drop like they should and all coilpacks are dropping in revs so could the problem be elsewhere? Injectors etc? Or does the trick not work and should I still be looking at coilpacks?

     

    Getting confused now!

  5. Hi guys, just replaced sparkplugs to fix a misfire which has worked nicely but I noticed in one of the spark plug holes (one directly underneath throttle body) there was a fair amount of oil round the spark plug which has then gone onto the coilpack edges.

     

    This was obviously the cause of the misfire but whats causing the oil to leak onto the plug and coil?

     

    My guess is something expensive to repair! Google tells me valve gasket?

     

    Thanks, Rob

  6. Hi guys, My sub has stopped working! :thumbdown: And Im assuming its down to the amp as I know they aren't the best!

    Anyone got a spare replacement I can buy? Must be in fully working order.

     

    Or if anyone has the sub and amp they can sell for a decent price I might be interested as Im not 100% sure its the amp!

     

    Cheap as poss please :D

    Cheers, Rob

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