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Bad Idle

markdem

By markdem,
in General Maintenance

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markdem Community Regular

markdem

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just replaced the coil packs with brand new ones in an attempt to solve the misfire problem around the 5000rpm range and a bad idle but ive still got problems. im getting flat spots and minor missfires all through the rpm range when i floor it and it still misses at idle. the spark plugs are platinum and are only about 5000kms old and ive gapped them down to 0.8mm so i dont think its them.

i took a video of it and put it on youtube to help you guys see what im talking about. you can hear the bad idle best when the camera is at the exhaust

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https://www.sau.com.au/forums/topic/336621-bad-idle/
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payback21 Community Regular

payback21

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Not that i can here it very clearly coz there is a dam bird chirping in the background, but it sounds like a shitty injector causing it to miss. I could be wrong as it is hard to hear.

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markdem Community Regular

markdem

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it did have a shitty injector that i changed just before i got new coil packs. i wouldnt be surprised if the others were a bit dodgey too. i was playing around with it after i started this thread and i turned the cam timing thingy all the way anticlockwise and it seemed to help... a lot! im not having as much of an issue with misfires under load now and the idle is completely smooth, so i think the timing belt has slipped over one cog on the exhaust cam. i might have to send it to some pro's to take a look at the orientation of the cam and crank

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