Cnote0ne
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Hi BealJK, I'm having the same issue after doing the 75mm throttle body mod on my 350z (VQDE). I get the fault code 73 as soon as I turn the key to on position. I see a low voltage error in the ECU Status. Which relay did you swapped? My battery sit at 12 v ign/off and 14 v ign/on except when fault code hit it...drops to ~.4 v.
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Cnote0ne started following 350z with G4+ PNP hot start up and Intermittent ECU Fault Code #73, Aux 9/10 supply voltage
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I have another issue with a code 73 that keeps popping up. I was told by Link Support to change the throttle relay but that didn't fix it. It happens randomly. I can't seem to load the log, only 43kB allowed.
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It seem the IAT correction was set to off. I turned it on and so far it seem to work. I'll adjust the table if it need it. Thanks.
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My 350z has a hot start up issue. After driving for a few miles and I let it sit for 30 minutes it will not stay idle. Any help would be appreciated. Please see the attached log. Thanks. Log 2022-04-21 8;50;14 pm.zip
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I have a G4+ PnP
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Hi Adamw, Can I get a copy of that document? I have the same issue. Thanks.
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Problem solved. The wideband sensor was bad. Thanks guys.
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I moved the wideband sensor to the passenger side pipe and I still get the same bouncing effect.
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I found a small crack in the wideband bung and thought that was the source of the leak. After welding it, I still get the erratic AFR. No cracks in turbo manifolds. I don't see any other area in the exhaust for a leak.
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How do I correct that? I upgraded the cams and I want to get the most out of them. Thanks.
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Here is a log I ran today. The AFR is all over the place. I've never had it bounce around like that. I use the same Bosch wideband I got with the G4+. https://1drv.ms/u/s!AjI8sO2lko8akQ-GYdIf8gdSLgEG?e=wQZ816
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It's strange that those figures before were bad, but the car ran fine with a correct AFR. I tuned the fuel table and was ready to go on the dyno for more tuning. It's running now but the AFR is bouncing all over the place. I'm getting huge spikes during normal driving. I still can't seem to attach a log. Is there a calibration step for the wideband? My old UTEC setup had a calibration step for new wideband sensors.
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How do I do that?
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I managed to get it to idle by adding a crazy amount of fuel than previously tuned. My fuel table went from the 27, 28 in the idle cells to 65. The wideband is bouncing between 14.0 and 15ish. Could this be due to a faulty wideband? I'm having some issues with attaching files.