Smooth Throttle for UpRev

esfourteen

I really need to get a hold of someone at uprev to help out with this, I'd really love to be able to drive with ETC on again. I updated uprev/rom, flashed wstar's map to map1 and stock to map2. map1 was useless as it was last time, no throttle anywhere. switched to map2 on the fly and did some tracing/logging, I see about 4.15v which was decent, felt like the throttle was almost fully open, cool. Start the car up to drive home and I'm back to the same issue I was a year ago, 2.4v when flooring it until 4k rpm, then BAM wide open throttle. I didn't touch the maps at all... days like today make me want to switch over to ecutek.

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Awgd8

When was the last time you clean your throttle bodies? Maybe it is gummed up? The more filmed build up around the butterfly plates, the more the sensor adjust your baseline throttle and screw up the sensor reading? Not really sure if cleaning it might help? Just be careful not to open the plates when cleaning it. Work around while while it is close. It can be cleaned this way since I had done it once and I could feel the smooth acceleration after resetting the ECU using the pedal sequence reset.

esfourteen

My throttle bodies are squeaky clean, and completely unrelated to throttle on this car. For most driving scenarios the throttles are fully open and air intake is controlled using VVEL by adjusting lift, throttle % is just a simulated number.

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1slow370

not quite entirely there is always some amount of throttle applied to create vacuum for the brake booster. this is why the car has two map sensors

Also could somebody with logging post up a graph of a 3,4, or 5 gear pull from 2k to 7500rpm on a warm engine logging tps, vvel, vvt with voltage on the vertical and rpm on the horizontal.

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jrb55gh

Here is a data log from my Ecutek software of throttle pedal sensor and throttle opening sensor for several easy starts. It appears that the throttle roughly follows the throttle pedal and does not remain wide open. The pedal sensor voltage is in blue and the throttle opening sensor is in yellow. The second screenshot overlays the VVEL (magenta) and VVT (red). There is truly a lot going on with every movement of the throttle pedal.

juld0zer

from what i've read about VVT, the VVT advance should be zero (ie. not advanced nor retarded) when the gas pedal is at rest. Unless Nissan's CVTC system is different to that of other makes. Or i may have just misunderstood the materials i've read.

Your screenshot is of interest to me because i am trying to figure out an intermittent throttle response loss, which occurs mainly when the engine is fully warmed up.

Your VVT cam angle appears to be advanced at approx 35* when you are coasting which is pretty much the same conclusion i formed after graphing my Uprev logs. The only time cam angle is at zero is at a standstill idling.