ZMANALEX

Could just be a traction issue caused by your style of driving. Pull the codes and report back

Is your car a JDM import or UK car ?

IMHO standard copper plugs are false economy on the 350Z whether DE or HR. As well as all the other arguments about which is the better plug regarding performance etc. etc. the Iridium will give you around 5 times as much time/ mileage than the copper. Copper will require changing every year or 12,000 miles Iridium should last you circa 5 years or 60,000 miles. If you have to pay a garage to swop out the plugs, they will charge you North of £100.00 each time. Do the maths. I rest my case:

Is that not £19.50 each for the HR ?

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See my post #3

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1031 is Bank 1 A/F sensor 1051 is Bank 2 A/F sensor.

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Get a code reader that is compatible with your car.

Well done.

PM sent.

I use the same map on my R35 for Shell and Tesco. You are paying extra for the Shell branding.

Speak to your Uprev tuner.

The HR model does experience similar issues and can be sorted with an Uprev.

That's Vincent's car and it is usually hovering in the back ground.

That's Vincent's car and it is usually hovering in the back ground.

I would remove the spacers, K&Ns and Rays and MPSS s if you have the original wheels and tyres to go back on, if you decide to P/X

Thanks Alex - I assume to turn off the sensors is a remap (the car had an uprev, so presume I still have the license for a return visit)? Cheers, Howard Yes mate, Uprev.

The mpss will have the longevity but probably not £170.00 worth of extra miles, however mpss would still get my vote due to all the other pros.

Thanks Alex. What are O2 simulators? Are the O2 sensors not required at all with HFCs? Simulators is just the fancy name for spacers. O2 sensors can be turned off for all models of VQ35DE 350s

You have answered your own question regarding the probable cause. Either fit O2 simulators, or get them turned off.

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Rear toe and camber will be the cause. Get a full 4 wheel alignment done on a proper machine with a competent operator. Job done.

If your rotors and pads are in good shape, then pad deposit or perhaps abs sensor are two that spring to mind.