RonG
New Member
- Joined
- Nov 26, 2016
- Messages
- 4
- Reaction score
- 2
- Points
- 3
- Age
- 63
- Location
- Sydney
- Members Ride
- VZ Executive
I all Alloytech Guru's. I am having issues with my 05 VZ Commodore V6. Erratic engine running.
It is a base model with the Alloytech V6
220k's
Automatic
For some time, it has had a problem with a misfire under load (aircon on etc). I have changed the plugs and that did seem to help for a few months.
The problem has returned, but now is far worse.
At idle it is very rough and came up with a driveline error code on the display. Using a scanner, it indicated low pre cat O2 sensor voltages. So i replaced both of them. Still the same problem.
The strange thing is when I rev the engine, it is very erratic. Sometimes it wont rev past approx 3000, other times it feels like its normal self.
Looking at the scanner, the Ignition advance is all over the place, from -15 to +25 degrees.
I am not sure what to do next. Could it be one of the angle sensors - or is it time to shotgun the thing and replace plug ignition coil packs, plugs, injectors etc.
Thanks for your time
It is a base model with the Alloytech V6
220k's
Automatic
For some time, it has had a problem with a misfire under load (aircon on etc). I have changed the plugs and that did seem to help for a few months.
The problem has returned, but now is far worse.
At idle it is very rough and came up with a driveline error code on the display. Using a scanner, it indicated low pre cat O2 sensor voltages. So i replaced both of them. Still the same problem.
The strange thing is when I rev the engine, it is very erratic. Sometimes it wont rev past approx 3000, other times it feels like its normal self.
Looking at the scanner, the Ignition advance is all over the place, from -15 to +25 degrees.
I am not sure what to do next. Could it be one of the angle sensors - or is it time to shotgun the thing and replace plug ignition coil packs, plugs, injectors etc.
Thanks for your time