Matti85 Posted June 13, 2007 Share Posted June 13, 2007 Never had it and will go bpu soon, want to know how to recongnize missfires though, always thought they sound like a gunfire from the exhaust ? Quote Link to comment Share on other sites More sharing options...
ManwithSupra Posted June 13, 2007 Share Posted June 13, 2007 No a missfire is like a missed heart beat (murmer) If you have a missfire you can uaualy feel it through the body work or can hear it. if you were to make a sound every second it may go something like this....(bom is the normal engine sound babom is a missfire sound) bom... bom... bom... bom..babom.bom..babom... bom... bom... bom... If you let your car idle and open your door and rest your hand on top of the glass you should be able to feel a little jolt everytime it missfires if not then you dont have a missfire if you do then well you do. The sound and the jolt should be at the same time. Everyone has permission to call me crazy Quote Link to comment Share on other sites More sharing options...
djskeme Posted June 13, 2007 Share Posted June 13, 2007 would changing the plugs resolve the mis fire issue...cos mine does it every now and then....just a subtle murmur or blip in the normally lovely smooth idle of the car And if it is the plugs that need changing, what plugs are recommended for everyday road use, obviously not huge expense, but decent quality. thanks Quote Link to comment Share on other sites More sharing options...
ManwithSupra Posted June 13, 2007 Share Posted June 13, 2007 Its usualy your plugs old or incorrectly gapped but could be your coilpacks if you change them and its still happening There seems to a be a constant debate on here about what sparks you use, lots of people stick to Denso Iriduim IK20 or IK22's (if your running BPU) for the TT's but i have just found a set of NGK Iridum sparks for cheaper and i cant tell the difference of them - (Other post in the thread from me) Quote Link to comment Share on other sites More sharing options...
Ian C Posted June 13, 2007 Share Posted June 13, 2007 would changing the plugs resolve the mis fire issue...cos mine does it every now and then....just a subtle murmur or blip in the normally lovely smooth idle of the car thanks This is normal behaviour and a function of the ECU constantly probing for the best fuel mix and lowest manageable idle. -Ian Quote Link to comment Share on other sites More sharing options...
Terminator Posted June 13, 2007 Share Posted June 13, 2007 Never had it and will go bpu soon, want to know how to recongnize missfires though, always thought they sound like a gunfire from the exhaust ? That is a back fire, unburned fuel ignited in the exhaust.With flames out the back on occasion. Quote Link to comment Share on other sites More sharing options...
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