Stramec
New Member
- Joined
- Feb 21, 2019
- Messages
- 6
- Reaction score
- 2
- Points
- 1
- Age
- 45
- Location
- Mandurah
- Members Ride
- VY 3.8L 2003
Hi All
So my VY has decided to start missing and juddering. Assumed it was a dodgy spark plug, as they were due to be replaced, put in new sparks and new leads. Same problem.
After reading this fine forum I tested the coils and found the 1 & 4 coil had no spark arching on it. So thought super easy quick replacement of coil. Same problem.
Must be the DFI is shot. Just replaced that this morning, left the 1 & 4 leads off, and the coil sparked, put them back on, started the engine... Same problem.
Took the leads off no spark arching on the 1 & 4 coil. As the problem is remaining constant either something is frazzling the DFI almost immediately, or it's being caused elsewhere.
So now I'm at a bit of a loss. The engine starts ok, it judders a lot, especially under load. The other 4 cylinders seem to be working fine. So from my brief knowledge I don't think the CAS can be screwed.
I have a Tech2 and that is showing no error codes, I'll try the paper clip test, just as a hail Mary.
I cleaned the connector to the DFI, looks ok.
The only other thing is intermittently I'll get a dashboard alert that there is a fuel gauge error and I should contact the dealer. - I don't see how this could be related to one coil not sparking, but it's there just in case.
Would greatly appreciate some suggestions as to what to try next.
Cheers
So my VY has decided to start missing and juddering. Assumed it was a dodgy spark plug, as they were due to be replaced, put in new sparks and new leads. Same problem.
After reading this fine forum I tested the coils and found the 1 & 4 coil had no spark arching on it. So thought super easy quick replacement of coil. Same problem.
Must be the DFI is shot. Just replaced that this morning, left the 1 & 4 leads off, and the coil sparked, put them back on, started the engine... Same problem.
Took the leads off no spark arching on the 1 & 4 coil. As the problem is remaining constant either something is frazzling the DFI almost immediately, or it's being caused elsewhere.
So now I'm at a bit of a loss. The engine starts ok, it judders a lot, especially under load. The other 4 cylinders seem to be working fine. So from my brief knowledge I don't think the CAS can be screwed.
I have a Tech2 and that is showing no error codes, I'll try the paper clip test, just as a hail Mary.
I cleaned the connector to the DFI, looks ok.
The only other thing is intermittently I'll get a dashboard alert that there is a fuel gauge error and I should contact the dealer. - I don't see how this could be related to one coil not sparking, but it's there just in case.
Would greatly appreciate some suggestions as to what to try next.
Cheers