POVO VS UTE
New Member
- Joined
- Jul 24, 2012
- Messages
- 8
- Reaction score
- 0
- Points
- 0
- Location
- Melbourne
- Members Ride
- VS UTE 1995
G'day Commodoreans,
Just new to this Forum, as I have just acquired a VS V6 Auto Ute '95. My knowledge of cars stops at the WB Holden, so EFI/ECU issues are a mystery to me. I hope you can help. Here's the story:
Just picked up a cheap VS Ute as a run around work car, knowing it had a miss. Previous owner thought it may be the knock sensor (don't they just retard the timing?). Here's what I have know so far:
290,000 k on the clock
Replaced Coil Packs (unverified - only told by previous owner)
Replaced Ignition LEADS (As above)
Does have an OTR intake (no other engine mods that I am aware of)
Does have a VZ Auto fitted by previous owner
Took it to my mechanic for RWC & general check up, and so far has done the following:
Replaced the intake manifold gasket - No Difference
Mechanic told me that he had pinpointed the miss to cylinder number 3 (but that maybe only because of the item below, I'm not sure)
Compression check showed 100 psi, all others were up around 150 psi
Tried a different Spark Plug - No Difference
Tried another injector - No Difference
Cleaned the BEJEEZUZ out of the injector, intake runners - No Difference
Scan revealed no engine errors
Scan did come up with Air Bag (it has an aftermarket steering wheel that I am returning to standard) & O2 Sensor (Would that cause a miss and how do I check it?)
The miss is always there, only slight on light throttle, and mainly audible through the exhaust, but under load, will back fire through the intake. It does not blow any smoke at all. I'd be very interested in suggestions, and perhaps common problems with this model/engine as I am not familiar with them at all.
By the way, Mace Engineering where are you located? If I am unable to source the problem, I may have to bring it down. My mechanic, whilst a nice guy who would never rip me off, is really just using the Process of Elimination to try and solve the issue, which is starting to add up.
A big thanks in advance,
Dom
Just new to this Forum, as I have just acquired a VS V6 Auto Ute '95. My knowledge of cars stops at the WB Holden, so EFI/ECU issues are a mystery to me. I hope you can help. Here's the story:
Just picked up a cheap VS Ute as a run around work car, knowing it had a miss. Previous owner thought it may be the knock sensor (don't they just retard the timing?). Here's what I have know so far:
290,000 k on the clock
Replaced Coil Packs (unverified - only told by previous owner)
Replaced Ignition LEADS (As above)
Does have an OTR intake (no other engine mods that I am aware of)
Does have a VZ Auto fitted by previous owner
Took it to my mechanic for RWC & general check up, and so far has done the following:
Replaced the intake manifold gasket - No Difference
Mechanic told me that he had pinpointed the miss to cylinder number 3 (but that maybe only because of the item below, I'm not sure)
Compression check showed 100 psi, all others were up around 150 psi
Tried a different Spark Plug - No Difference
Tried another injector - No Difference
Cleaned the BEJEEZUZ out of the injector, intake runners - No Difference
Scan revealed no engine errors
Scan did come up with Air Bag (it has an aftermarket steering wheel that I am returning to standard) & O2 Sensor (Would that cause a miss and how do I check it?)
The miss is always there, only slight on light throttle, and mainly audible through the exhaust, but under load, will back fire through the intake. It does not blow any smoke at all. I'd be very interested in suggestions, and perhaps common problems with this model/engine as I am not familiar with them at all.
By the way, Mace Engineering where are you located? If I am unable to source the problem, I may have to bring it down. My mechanic, whilst a nice guy who would never rip me off, is really just using the Process of Elimination to try and solve the issue, which is starting to add up.
A big thanks in advance,
Dom