Check Engine / Stability Control Error/ Scan tool says Random Cylinder Misfire

[SamiB]

Hey guys

First Time Posting..go easy on me lol..

so my VE Ss Z series 2 my12.5
Has been coming up woth a
*check engine light (comes and goes)
* Stability Control Fault..(comes more so if idoling at the lights etc) that when u can noticeably feel the misfire

Yes have put the scan tool on it and says
Random Cylinder Misfire..

Have done the following on my girl

brand new Leads and Plugs
2 new Coil Packs ( scan tool came up with coil 6 misfire before this error) replaces coil 6 and 2(had a bit chipped off when I took the leads off so figured I’d just replace it as I was going)
New O2 sensor
New radiator hoses (mine some how sucked them selves in but kept water)
New battery

this issue started when I got my car back from the panel shop after getting the rear bar and rear passenger rim fixed from some ass running up mine at a red light...

there have Been occasions when the stability error would come up after washing my car but it would disappear by the end of the day if that .. and there was no misfire or idol issues...

 

[lazyc]

Can it fault at any time? Before engine is to temp?
Might be time to inspect fuel pressure when it's playing up. (Doubtful due to idle, but rear end fix)
All coil/injection looms clean plugged in well? Engine earth?

What's battery voltage when it fails?
Otr/stock intake? No bits of plastic floating around inside it?

Do you hear or feel anything odd before it fails?
Manual/Auto?

 

[krusing]

Sounds like its going into Limp Mode,

Did the panel shop have to drop and/or repair/replace the rear K-Frame ?

If so, I am guessing the loom is not connected correctly, or has been damaged. [cables stretched or crushed]

As for washing the car, I would say there is water/moister getting in one of the connectors, make sure NONE of the silicon seals that are found in most plugs/connectors are not missing, especially the ABS plugs on the rear wheels.
Or If they only had to changed the left rear hub & suspension, that could be where the fault could be, trace it back from there.

Also check the one near the fuel tank connector, as thats right next to the K-Frame Bolt & Bush, [drivers side]
or one that runs across the K-Frame, [could of been damaged/crushed when it was up onthe hoist]
Maybe best to get under there and check the whole loom, unplug them and make sure they are dry, give them a spray with WD40 or similar.
Water plays havoc with electronics.

 

[SamiB]

Can it fault at any time? Before engine is to temp?
Might be time to inspect fuel pressure when it's playing up. (Doubtful due to idle, but rear end fix)
All coil/injection looms clean plugged in well? Engine earth?

What's battery voltage when it fails?
Otr/stock intake? No bits of plastic floating around inside it?

Do you hear or feel anything odd before it fails?
Manual/Auto?

All cleaned and plugged in nothing lose

check engine comes on almost instantly once started up
Stability control comes on and Off random times but mostly if left idoling and that’s when the misfire comes
If anything n I thought it was a blonde thought when idoling and u notice the AC compressor kick in moments later the stability control fault comes on n misfires
But no leak in Ac I have had that checked

auto (sadly )

 

[SamiB]

Sounds like its going into Limp Mode,

Did the panel shop have to drop and/or repair/replace the rear K-Frame ?

If so, I am guessing the loom is not connected correctly, or has been damaged. [cables stretched or crushed]

As for washing the car, I would say there is water/moister getting in one of the connectors, make sure NONE of the silicon seals that are found in most plugs/connectors are not missing, especially the ABS plugs on the rear wheels.
Or If they only had to changed the left rear hub & suspension, that could be where the fault could be, trace it back from there.

Also check the one near the fuel tank connector, as thats right next to the K-Frame Bolt & Bush, [drivers side]
or one that runs across the K-Frame, [could of been damaged/crushed when it was up onthe hoist]
Maybe best to get under there and check the whole loom, unplug them and make sure they are dry, give them a spray with WD40 or similar.
Water plays havoc with electronics.

Rear bar was just a simple replacement no K frame damage ..
Will jump under it and check the loom
Parts cleaner ok? Yes blonde question
Only the rim was sent away to have the scratches repaird on it nothing else was needing to replaced here’s some pics of wat the bar looked like

 

[MYVESSV8]

All cleaned and plugged in nothing lose

check engine comes on almost instantly once started up
Stability control comes on and Off random times but mostly if left idoling and that’s when the misfire comes
If anything n I thought it was a blonde thought when idoling and u notice the AC compressor kick in moments later the stability control fault comes on n misfires
But no leak in Ac I have had that checked

auto (sadly )

check for loose connections on plugs coils, are you only doing short stop start trips, wheel sensor

 

[SamiB]

check for loose connections on plugs coils, are you only doing short stop start trips, wheel sensor

Only run around town errors which. Basically is to daycare or the shops and back nothing fantastic..

Tested all injectors they r all fine all plugs r fine nothing crushed or lose
All sensors r fine and not lose or dirty etc either

stability control didn’t come on this morning but check engine light did instantly

 

[Shashank2495]

Hey mate, I’m facing the same problem. Have you found any solution? Thx.

 

[lout]

Hey mate, I’m facing the same problem. Have you found any solution? Thx.

please start you own thread, it is too confusing
every problem, you have stated you have the same fault