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VZ Spark Plug Change - Now Pinging???

bigdaddycool

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I just did a spark plug change yesterday on my 2006 VZ Exec. it had some single pointed bosch platinums, and i replaced them with some 4 pointed bosch platinums as thats what I was told to use via supercheap, i doubled checked the book at supercheap n they were the right ones.

Fairly straight foward, n now i have pinging.

1. Wrong plugs? or maybe that they are 4 point and not the 1 point ones (1 prong).
2. Intake manifold leak? ....... when I first put it on it was misfiring, tightened it up a bit and it was fine.

As I have tuning software, I lowered the timing advance, put some 98 fuel in and still no go.

HELP
 

Robbo5390

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did mine 1000kms ago 99 vt exec and one of the plugs outer casing was fractured straight out of the packet, when i torqued it, it fell to pieces i didnt try to start it like that but maybe that might be a problem. took it back got a new one and they go good as now, i highly recommend the bosch fusions quad sparks :p
 

bigdaddycool

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yea I got the quad fusions...... I redid the manifold and rechecked them........... still pinging.
 

Exidor

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I replaced mine with Fusions.
No problems to report.
Although they do have a larger non
adjustable gap than OEM.
 

monaro327

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impulse sv6 fitted those fusions to his car as well and got pinging in the top end ended up fitting ngk's to fix it.
 

Calaber

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+1 for NGK plugs. No experience with them on VZ's but they have always given the best service in my experience.
 

danja

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Maybe they are the wrong heat range?

A call to Bosch might not go awry.
 

slidways

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yes NGK are the way to go i did mine today and apart from breaking my tp elec connector shes running like a machine
 
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