2005vzute
Djabringyagrogalong
- Joined
- May 26, 2010
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- 362
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- Age
- 30
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- Glenfield 2167
- Website
- forums.justcommodores.com.au
- Members Ride
- 2005 VZ Ute M6
g'day all,
very sorry about a wall of text, but i think this could turn out to be a great thread if you take the time to read
so i've been thinking for a while why nearly every alloytec i've driven always has a rough idle...to my car i have done absolutly everything practical except for oxy sensors and ignition coils, you name it, vacuum leaks, filters, maf cleaning, ultrasonic injector cleaning, spark plugs etc, rough idle still there
so although i'm pretty sure it's got something to do with ignition coils i don't wanna go spending hundreds to possibly got an end result of nothing...the problem with these engine's im finding is misifre at idle right? not under load, not at certain revs..just idle...and it's a majority of alloytecs..so im not entirely convinced it is the ignition coil itself, but possibly something to do with it...surely every igniton coil isn't going to **** itself in these engines right? so it got me thinking maybe there has been a stuff up from factory, not entirely to do with quality of parts, but maybe the design of wiring and where it has been placed..
my ute is currently out of action till later this week, in which my dad needs to use it anyway so i can't go investigate this straight away but it's a theory and it could possibly be causing our misfires.
so here it is...anyone that knows a thing or two about the CAN bus system will know that the CAN high and CAN low (twisted multiplexing wires) wires use signals...the reason these 2 wires are twisted together is why? to reduce interference...could it be possible that wires somewhere along the line are getting an interference? possibly causing a distorted signal? possibly causing igniton coils not to be as fully functional as they should be? maybe the interference is coming from the wires being to close to a power cable? an electromagnetic field distorting the signal?
i think i am going to investigate every wire from the twisted multiplexing wires to the igniton coil wires for anything that may cause a distorted signal that may cause a misfire..this could also possibly mean a distorted injector duty cycle signal...the possibilities are endless to where interference may come into it? but is it possible, i think so.
to those that understand what i'm talking about PLEASE share your thoughts and comments about it..i could be way off the mark about a simple misfire, maybe not
cheers everyone
very sorry about a wall of text, but i think this could turn out to be a great thread if you take the time to read
so i've been thinking for a while why nearly every alloytec i've driven always has a rough idle...to my car i have done absolutly everything practical except for oxy sensors and ignition coils, you name it, vacuum leaks, filters, maf cleaning, ultrasonic injector cleaning, spark plugs etc, rough idle still there
so although i'm pretty sure it's got something to do with ignition coils i don't wanna go spending hundreds to possibly got an end result of nothing...the problem with these engine's im finding is misifre at idle right? not under load, not at certain revs..just idle...and it's a majority of alloytecs..so im not entirely convinced it is the ignition coil itself, but possibly something to do with it...surely every igniton coil isn't going to **** itself in these engines right? so it got me thinking maybe there has been a stuff up from factory, not entirely to do with quality of parts, but maybe the design of wiring and where it has been placed..
my ute is currently out of action till later this week, in which my dad needs to use it anyway so i can't go investigate this straight away but it's a theory and it could possibly be causing our misfires.
so here it is...anyone that knows a thing or two about the CAN bus system will know that the CAN high and CAN low (twisted multiplexing wires) wires use signals...the reason these 2 wires are twisted together is why? to reduce interference...could it be possible that wires somewhere along the line are getting an interference? possibly causing a distorted signal? possibly causing igniton coils not to be as fully functional as they should be? maybe the interference is coming from the wires being to close to a power cable? an electromagnetic field distorting the signal?
i think i am going to investigate every wire from the twisted multiplexing wires to the igniton coil wires for anything that may cause a distorted signal that may cause a misfire..this could also possibly mean a distorted injector duty cycle signal...the possibilities are endless to where interference may come into it? but is it possible, i think so.
to those that understand what i'm talking about PLEASE share your thoughts and comments about it..i could be way off the mark about a simple misfire, maybe not
cheers everyone