high_point
New Member
- Joined
- Aug 19, 2018
- Messages
- 10
- Reaction score
- 4
- Points
- 3
- Location
- Melbourne
- Members Ride
- Vz Commodore
Hey Folks,
Seems i'm encountering an issue with my Vz (6 cylinder 175 kw), i'm getting a cylinder misfiring/locking out under very specific circumstances.
On a cold start, car runs fine and will run fine indefinitely.
However, do a trip and leave the car to rest for 10 minutes, turning on the car results in an instant error code indicating that cylinder 3 is misfiring and the car starts vibrating/chugging. From the feel of it, the cylinder misfires every rotation. it isn't a sporadic misfire.
Now, I can make the fault disappear if i get a decent speed on the car and travel for a bit, then stop and immediately restart the car. On restarting, the fault disappears and misfires stop.
So from what i can guess, there's a heating/cooling issue on some part in the car and getting up to speed must cool it down.
Further info on the car:
it's been converted to liquid injection Gas, issue occurs on both gas and petrol which should rule out the possibility of it being the injectors.
The fact that it runs fine on the initial cold start makes me think that it wouldn't be the spark plugs or coil packs.
any ideas on what part might be causing the issue? Have done some reading and a common faulty part that seems to be popping up seems to be the ECU, not sure if i would have any way of testing that its the case.
Seems i'm encountering an issue with my Vz (6 cylinder 175 kw), i'm getting a cylinder misfiring/locking out under very specific circumstances.
On a cold start, car runs fine and will run fine indefinitely.
However, do a trip and leave the car to rest for 10 minutes, turning on the car results in an instant error code indicating that cylinder 3 is misfiring and the car starts vibrating/chugging. From the feel of it, the cylinder misfires every rotation. it isn't a sporadic misfire.
Now, I can make the fault disappear if i get a decent speed on the car and travel for a bit, then stop and immediately restart the car. On restarting, the fault disappears and misfires stop.
So from what i can guess, there's a heating/cooling issue on some part in the car and getting up to speed must cool it down.
Further info on the car:
it's been converted to liquid injection Gas, issue occurs on both gas and petrol which should rule out the possibility of it being the injectors.
The fact that it runs fine on the initial cold start makes me think that it wouldn't be the spark plugs or coil packs.
any ideas on what part might be causing the issue? Have done some reading and a common faulty part that seems to be popping up seems to be the ECU, not sure if i would have any way of testing that its the case.