SonicVQ

Hey!
I guess you are here to find out more about me... so here goes

I drive a G37 Sport Sedan (rear wheel drive, 6 speed manual) and have a background in electronics, auto mechanics, vehicle networks (CAN bus), C/C++ programming and micro controllers.

Most of my time is spent on automotive research (Nissan/Infiniti) and trying to help others.

Thanks for dropping by!

How does the car run at idle and full throttle? If you haven't already, I would clean the MAFs. I understand the milage is very low, but dirty MAFs don't accurately report the air flow and then we...

Here is what I see: • The fuel trims are within the normal range - good! • O2B2S2(V) / O2B2S2(V) -> this is the rear o2 sensor voltage. A single "snap shot" of this data doesn't tell us...

Well... This is VERY interesting. For those interested in making a copy of their ECU ROM, "VQ_Crazy!" on romraider has designed/built/programmed a cheap ($15+) Arduino based, CAN bus hardware...

Very interesting. Thanks for posting this! It seems like the counterfeit parts always have crappy plastic injection molds and there is a large amount of "flash". (plastic that leaks through the mold...

Very interesting. Thanks for posting this! It seems like the counterfeit parts always have crappy plastic injection molds and there is a large amount of "flash". (plastic that leaks through the mold...

Very interesting. Thanks for posting this! It seems like the counterfeit parts always have crappy plastic injection molds and there is a large amount of "flash". (plastic that leaks through the mold...

How does the car run at idle and full throttle? If you haven't already, I would clean the MAFs. I understand the milage is very low, but dirty MAFs don't accurately report the air flow and then we...

How does the car run at idle and full throttle? If you haven't already, I would clean the MAFs. I understand the milage is very low, but dirty MAFs don't accurately report the air flow and then we...

How does the car run at idle and full throttle? If you haven't already, I would clean the MAFs. I understand the milage is very low, but dirty MAFs don't accurately report the air flow and then we...

The latest documentation I have is for a 2016 370z, and I don't think Nissan would have changed anything since. Based on the ROM you posted, your 370 is from 2017 and I would expect it to be the...

Is the cranking speed the same in each example? As for fuel pressure, her is what I have measured from my 2011 G37 last month: • When the engine is turned off it drops to about 46 PSI from 51 PSI...

Good news! However, the reason the ECM showed a high temp, was because of bad wiring. The engine oil temperature sensor (and the coolant temp sensor) decrease in resistance as warms up, and...

Those fuel trims look good. There is no harm in doing a idle air volume learning and it would be interesting to see if that changes anything. I don't know if turning off the O2 sensor codes...

Overall, it really isn't anything to worry about. I suspect the cause is your test pipes. Starting in about 2011, a "Rear Fuel Trim Monitor" was implemented in the ECM software. As the...

Overall, it really isn't anything to worry about. I suspect the cause is your test pipes. Starting in about 2011, a "Rear Fuel Trim Monitor" was implemented in the ECM software. As the...