mellonman Posted October 7, 2013 Share Posted October 7, 2013 Seems like my car has a misfire I have changed almost everything and last time I changed the plugs the missfire went away but now its back so was thinking that its blowing the spsrk out as it happens in high boost, Im getting error 14 which is ignition related , And the igniter is clearly in the ignition but not 100% sure on what it does and if it could cause my issue the repair manual keeps saying about changing it Ny help would be great Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 7, 2013 Share Posted October 7, 2013 Have you changed the coil clips? Ignitors do fail but its not common. Is the wiring to the coils all in good shape? The insulation breaks down allowing leaks to earth. Quote Link to comment Share on other sites More sharing options...
mellonman Posted October 8, 2013 Author Share Posted October 8, 2013 Have you changed the coil clips? Ignitors do fail but its not common. Is the wiring to the coils all in good shape? The insulation breaks down allowing leaks to earth. I have change Clips Coils Plugs Wire to coils replaced Injectors Thats why im at a loose here its for sure aweak spark, how does a igniter act when failing ? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 8, 2013 Share Posted October 8, 2013 Id slave in a new ignitor anyway and see if its that, then maybe its the ECU? What spark plugs are you running, and what gap (if applicable) Quote Link to comment Share on other sites More sharing options...
black_widow87 Posted October 8, 2013 Share Posted October 8, 2013 Iv seen erratic misfire/spark blow out caused by ignitor. Was cured by fitting a spark amplifier as the stock unit is pretty s**t! Quote Link to comment Share on other sites More sharing options...
mellonman Posted October 8, 2013 Author Share Posted October 8, 2013 Iv seen erratic misfire/spark blow out caused by ignitor. Was cured by fitting a spark amplifier as the stock unit is pretty s**t! Very intresting so does that bypass the stock igniter? Id slave in a new ignitor anyway and see if its that, then maybe its the ECU? What spark plugs are you running, and what gap (if applicable) I had bkr8eix and had the miss so changed back to bkr7eix which solved the miss but now its back, so im guessing that when the plugs are new they are perfict but as they get older they degrade but they only last 6 months with 500 miles tops, I have looked at the plugs and they look like new not gapped obviously as they are iridium but the gap did look large to my eye but even across all plugs Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 8, 2013 Share Posted October 8, 2013 HKS DLI is it? Quote Link to comment Share on other sites More sharing options...
mellonman Posted October 8, 2013 Author Share Posted October 8, 2013 So is the stock igniter the amplifier if so I will change it for sure Quote Link to comment Share on other sites More sharing options...
black_widow87 Posted October 8, 2013 Share Posted October 8, 2013 HKS DLI is it? Yea thats the one. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 9, 2013 Share Posted October 9, 2013 The term "amplifier" is a bad one, although in common use, and I use it myself. It's really a semiconductor switch array. It means the ecu doesn't have to switch spiky high loads. reduces EMI and heat in the ecu. Usually a failing igniter pack will affect only one coil. Reversed polarity jump starts are one thing it HATES, hence loads of dead 2JZ-GTE engines dockside as they jump them off the ship.... You could use other amplifiers, but they would need the loom adapting. To say it's &%$@# is a bit daft. It will either switch the coil packs properly or it won't, and they work fine, when functioning correctly. Quote Link to comment Share on other sites More sharing options...
mellonman Posted October 9, 2013 Author Share Posted October 9, 2013 The term "amplifier" is a bad one, although in common use, and I use it myself. It's really a semiconductor switch array. It means the ecu doesn't have to switch spiky high loads. reduces EMI and heat in the ecu. Usually a failing igniter pack will affect only one coil. Reversed polarity jump starts are one thing it HATES, hence loads of dead 2JZ-GTE engines dockside as they jump them off the ship.... You could use other amplifiers, but they would need the loom adapting. To say it's &%$@# is a bit daft. It will either switch the coil packs properly or it won't, and they work fine, when functioning correctly. thanks for the input chris , i have seen a video on you tube with one of these being scoped out and it looks like if the parten signal from the ignitor was to change IE bad igniter the ecu would see this as a fault and miss, thats from what i can tell anyway, so you would say it works fine and fails full stop, and wouldnt brake down and cause a missfire over time? as you know i have been at this for some time now , strange how new plugs cure it for a couple of months Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 9, 2013 Share Posted October 9, 2013 RB26DETT Skyline engines are notorious for igniter box failures. They are also no longer available from Nissan, even at the £600 plus list price. I converted mine to run Bosch igniter modules, and it's 100% firing hefty motorsport coil on plugs. For sure your igniter box could have an intermittent low output problem on one or more cylinders. try heating it to pretty hot to the touch, but quite bearable, with a hair dryer or heat gun on low. They are often temp sensitive faults. Quote Link to comment Share on other sites More sharing options...
mellonman Posted October 9, 2013 Author Share Posted October 9, 2013 RB26DETT Skyline engines are notorious for igniter box failures. They are also no longer available from Nissan, even at the £600 plus list price. I converted mine to run Bosch igniter modules, and it's 100% firing hefty motorsport coil on plugs. For sure your igniter box could have an intermittent low output problem on one or more cylinders. try heating it to pretty hot to the touch, but quite bearable, with a hair dryer or heat gun on low. They are often temp sensitive faults. intresting i will give that ago at least this high boost miss is a perminant fault so makes for easier fault finding , on the plus side i have a new igniter on order just waiting for new stock Quote Link to comment Share on other sites More sharing options...
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