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350z roadster not running proply


Y23DRH

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Car was running fine then had service and both rocker covers replaced due to oil leaking down to the spark plug

 

Has had new spark plugs

Oil filter

Fuel filter

Fresh oil change

Plus many more bits

 

All back togeather and has developed missfire

 

All plugs checked for spark amd are fine and correct plugs for the car

Also all coil packs are fully working aswell

 

Checked all semsor pluged back in and oil hoses etc

 

But still has missifre and is over fueling

 

Got mobile diagnostic chap comeing in the next few hours to have plug it in but does any one have any ideas what it could be

 

Any help would be very apprecitaed

 

Its a 05 350z roadster gt vq35de

Edited by F4ABP
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Are you sure coil packs for cylinder 4 and 6 are connected to the correct plugs? Very common to mix those 2 up.

 

Yea double checked them and there all in the correct order :/

 

Missfired from the moment the car starts up

 

Was running and driveing fine before hand

 

Just needed service and new plugs and few other bits

 

Cheked every thing i can on the car made sure all the plugs are pluged in etc and also all sensors are pluged in

Edited by F4ABP
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Dan,

 

Back to whoever fitted the parts or whoever supplied the parts or both:

 

Simples:

 

Alex. :)

 

 

My brother done the work hes a mechanic with his own place etc but he has not charged me for any of the work yet got chap coming to plug the car in shortly so will see what that comes up with

 

 

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