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Hi everyone , I have just joined and need some help . I have a slight misfire . Have put in new spark plugs and had it put on a run on a analysis machine ( no faults found ), I have checked the compression of all 6 cylinders and they were fine . Has anyone had this problem , thanks
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Hard to say, is it only missing under load? Could be leads or coilpacks (I assume the engine has individual coil packs). Sometimes you will need to emulate the miss in order to diagnose it. Perhaps put the car on a rolling road dynomometer and see what is happening.My 150 build - http://www.pradopoint.com/showthread.php?27423-A-Random-approach-to-a-Bluestorm-150-GXL-D4D-automatic -
Yes MJ individual coil packs, and agree with MJ leads or packs next thing to check....... Cheers SteveFace lift 150 Prado V6 auto. No mods yetComment
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How many klms raider ??.... Cheers SteveFace lift 150 Prado V6 auto. No mods yetComment
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It's done about 94,000klms , it supposedly had the full 80,000klms service before I bought it , but have no proof of this .it seems to worse under load / accelerating , not that noticable at low revs.Originally posted by Steve M View PostComment
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Be unusual to be a coil pack with those sort of klms but anything is possible. Maybe age also could affect coil packs ??? .... Under load indicates break down of spark .... Cheers SteveFace lift 150 Prado V6 auto. No mods yetComment
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Wouldn't that model have misfire detection ?2012 Graphite GXL T/D Auto, with all the normal crap you fitComment
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hair line crack in one or a couple of the spark plugs or could also be a fuel system issueComment
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I would look at the electrical side of things first as that is the easier/ cheaper option to start with. If you can find someone with the same model Prado you might be able to swap parts over trying to find the issue then you will know what parts you need to buy.[B]Tasmania 2015 GTG Committee Member[/B] 2005 Prado Pilbara, Sovereign Bar, Driver & passenger weathershields, UHF TX3220, Spare wheel spaces, Lifestyle rack, Genuine front & midrow seatcovers, Genuine front & midrow rubber floor mats, ARB 47 litre fridge/freezer, Hilux washer jets, BF Goodridge A/T, Radiator protection plate, Dual battery tray and isolator, ARB 2.5m awning, Rhino heavy duty areo bars, MSA rear wheel bin, MAXTRAXComment
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Are there any members north of the river in perth WA that have a petrol 120 v6 that would be prepared to help me with that , I just need a car to change over parts to see if it fixes the problem , I can do all the work ( i do know what I'm doing ) hope someone can help ! ThanksComment
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Used to have a lot of problems when I worked for Mazda years ago with the sparking thought the connections to the spark plugs. When they got oh tinder load it would arc through. They get really hot being inside the spark plug tube in the head. I might be barking up the wrong tree but it's worth a look. Look really hard for little white mars and the will be a pin hole in the middle of it.2011 White GXL Diesel, ARB Sahara bar, Lightforce Genesis, ARB under bonnet compressor, Dual Batteries, GME TX3540Comment
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Best time to look for arcing is at night time. This is how I picked up the issue with our spark plug shields on our supercharged S Pack commodore we had....Cheers SteveFace lift 150 Prado V6 auto. No mods yetComment
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