50 minutes ago, Apex said:

Is collection an option? If so where are you based?

 

Collection is fine, I'm down in Plymouth, Devon. 

Let me know if you're interested 

13 minutes ago, fijifixit said:

Do you guys reset this before getting onto the motorway? Mine just seems to be stuck on 19.4mpg without the average speed increasing  . I just did a run from Dewsbury to Leicester and back.. I got 200 miles from £22 but it still said 19.4mpg?

Yeah you'll need to reset it. Assume the 350z is the same as the 370z on this little niche. 

But to add to the thread, I find the longer the drive, the more satisfying the feeling and better the numbers. Personally love just coasting in the left hand lane, soaking up attention and every once in a while dropping down a few gears and letting it roar for my own satisfaction. 

Do you guys reset this before getting onto the motorway? Mine just seems to be stuck on 19.4mpg without the average speed increasing  . I just did a run from Dewsbury to Leicester and back.. I got 200 miles from £22 but it still said 19.4mpg?

7 hours ago, evest said:

Hello all,

 

Bit stumped - wonder if anyone can help me? Car is suffering a rough idle and also occasionally cutting out when coming of the throttle and coasting into a stop - not every time though; the revs sometimes dip almost to 0, and then jump back up to normal - other times the car will stall. I do have fault code P1283 which I know may relate to one of the upstream O2 sensors, but I'm not convinced (yet) that the sensor is necessarily the problem.

 

So apart from the car struggling at idle, particularly when coming of the throttle, I've sat and monitored the car at warm idle, as follows:

 

Car idles warm at about 8-900rpm which I believe is normal.  However, like clockwork every 10 seconds it dips to about 500-700rpm and struggles for 5 seconds before returning to normal. This also had an effect on the sensor readings:

(approximately)

Bank 1, sensor 1 = 0.25V (when idle rpm dips, this goes to 0)

Bank 1, sensor 2 = 0.75V (when rpm dips, this rises to about 0.9)

Bank 2, sensor 1 = 0.25V (as above, dips to 0)

Bank 2, sensor 2 = 0.75V (as above, rises to about 0.9)

 

It feels like the sensors are responding correctly, or at least working. My plugs were done about 25K miles ago. I recently cleaned the MAF sensor and I don't have any obvious signs of a vacuum leak. Do I have a fuelling issue - injectors? Car seems to be pulling fine at normal speed and acceleration has felt normal.

 

At the moment - I'm inclined to try a new MAF sensor and do all the reset procedures. Any clue from the info above though?

 

Car is a 2003 DE at 165K miles, using normal 5w30 oil. The only other thing I changed recently was putting in a HKS   filter (standard airbox).

Hi there,

I had an issue where I had this same code relating to Bank 2 Sensor 1 pre cat sensor. I checked vacuum leaked etc and didn’t have anything. I didn’t want to pay £100+ on a genuine sensor to find out that it wasn’t the problem. 

Turns out, my issue was an exhaust leak between the cat and the exhaust manifold. The stock cats were on and the gasket had perished causing oxygen to enter and affect the sensor. This threw the code p1283 running lean on bank 2 as the sensor was detecting more oxygen in the exhaust than what was metered by the MAF. Saved myself £100+ by replacing the cats with TORQEN Decats ( was already going to do this ) and used new gaskets, holts gun gum and new bolts. 

I would suggest checking for these leaks first. Never had the code again since I sorted that out 

Is collection an option? If so where are you based?