vp fault codes 42 &43
hi guys. new here but need some help,was put onto this site by a mate.
my vp has been sort of surging when just cruising mostly below 70k's. engine light on, codes coming up are 42 and 43. i know 43 is knock sensor which gets a bit of oil on it and seems to trigger engine light, has been like this for months and never effects the way the car drives.
42 is saying Electronic Spark Timing Circuit (EST) . is this knock sensor related also?
i did a bit of a search on here and seems some very detailed (all of which are over my head) and some very mixed opinions.
if its knock sensor related ill just replace it, but if its the wiring to the KS i believe its part of the engine wiring loom? not really ready to replace that.
any help would be much appreciated. cheers chris
on holiday
if you get knock sensor error code the car will be going everywhere locked at 10 degrees timing should fix that asap.EST is normally 1 wire at the dfi module not making contact
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
so new knock sensor? whats the dfi module? the computer??? and how do i know where to look for the wire?
on holiday
dfi module is under the coils
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
hmmmm ok ill have a look, is there many wires going to it? whats it look like? havent spent too much time working on commodores lol
on holiday
held in by 1 bolt just dissconnect it and clean all the terminals and slide it back tgether and tighten back up
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
all fixed (so far) lol. new knock sensor in tonight, pulled the plug off the bottom of coil packs and cleaned. reset engine fuse. all good, no engine light, car runs fine, fault cod 12, system all good. cheeps for the help mate
sometimes the pins that go into the plug of the dfi get loose and you can tell them apart because there not small anymore, pretty common and stupid problem the plugs have
~ VN POWER ~ Click the scales
well the missus says it happened again today (surging) but only for a second or two, and only once. fault codes still saying system ok.
could this be coil packs dying? seems to sound ignition related?
ok this is really pissin me off now. fault code 42 is coming up again. and the surging, is alot worse than it was previously. if the engine light is on its runs ok, its only when the light comes on and of (almost flickering its that quick) that it runs really really rough. like it has a massive miss in it. any ideas guys? really need to sort this out
on holiday
dfi or coils or crank angle sensor
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
ok so when you say dfi, thats the plug under the coil packs yes? does that come out? or does the wire need to be choped and a new plug fitted? where abouts if the crank angle sensor? and how do i eliminate any or all of these as possibilities?Originally Posted by delcowizzid
The CAS (Crank Angle Sensor)is on the passenger side,right behind the harmonic balancer at the front of the motor,you can see the wiring and connetcor that goes to it.(The harmonic balancer ,just in case you dont know ,is the big pulley that is down the bottom at the front of the engine that drives the serpentine belt.)This balancer has to be removed to access or remove the CAS.You will need a harmonic balancer puller (3 bolt type,not the 3 leg type) to remove this.These pullers are cheap to buy from places like supercheap.
thanks heaps for that mate, but how do i know for sure its that? i mean if its not no reason to go to that length. could it be coil packs? does anyone have a pic of what the dsi looks like? or is it just the plug thing that ive been playin with?
The CAS on these engines causes a lot of problems,its very common.Sometimes they will set error codes ,sometimes they dont.And they dont always have the exact same symptoms when they stuff up.If your having trouble,then its usually just worth replacing it anyway if its old,just so you can then rule it out and look elsewhere for the problem..Also Ive seen problems with some new cheaper aftermarket CAS's.Id recommend buying a genuine holden CAS.They are more expensive,but worth it in the long run.Also Id look into borrowing a DFI module and the 3 coils to test on your engine.You can also try a different ECU if swapping over the DFI module doesnt show up anything.Also go over all main wiring harness connectors under the bonnet to make sure they are all ok.Unplug them,then plug them in again a few times, just to be sure theres a good connection..
cheers brett. i have replaced the cas with a 2nd hand one from my bros vs. just to make sure its it. running ok now but time will tell if its fixed it. probly should have gone new but $$$ are tight at the moment. plus its its not that id be spewin lol.
will let you know how it goes.
ok well this is a persistent bloody car!!! still doing the same thing. had new cas sensor. so im guessing dfi pins need to be tightened a little. was thinking coil packs but my bro said hes had a coil pack go and it is just like its got a miss. this is a bit worse.
any other theories out there? i guess its a process of elimination. are the computers for the vs the same as vp?
pretty sure computers are different between vp's and vs's. vn and vp are the same, i have a spare vp v6 computer i dont want if you want it its yours, just pay the postage and im happy.
id be changing the coil packs aswell, they cost bugger all. i got a second hand dfi and coil packs for 60 bucks from a wreckers.
(by the way this is pauly off mudrhino)
Yeah,definitely try some different coils and DFI module.IF its still no good after that,try a different ECU.
ha ha hey bud lol. tommorrow ill try different coils. how do i change the dfi module tho? isnt it just a plug? or do i have to change what its plugged in to???
The DFI module is the rectangle thing the 3 coils connect to or sit on top of..It has a wiring connector that has to be unscrewed and unplugged.
ahhh ok. now im with ya. i know the plug but just thought the dfi was part of the coil packs
on a slight side note are the vs and vp dfi units the same? cao i put a vs one in it and it started and ran fine. just wondering if this will cause any trouble?
I think they are all the same.If its running,then Id say its ok.
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