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I would check fuel pressure and look for vacuum leaks.
https://www.ericthecarguy.com/faq/solving-automotive-performance-issues
i used Erics method(carb cleaner) to check for vacuum leaks already i have a maxidas 708 diagnostic computer what data parameters should i post here im about to make another video with the live data
[quote=”fastz28usa” post=182395]i used Erics method(carb cleaner) to check for vacuum leaks already i have a maxidas 708 diagnostic computer what data parameters should i post here im about to make another video with the live data[/quote]
Fuel trims and front o2 sensor. If you have a vacuum gauge you may want to check for a
restricted exhaust.https://www.ericthecarguy.com/faq/solving-automotive-performance-issues
Take out the front oxygen sensor and screw in a back pressure gauge.It maybe a plugged up catalytic converter
i just got done recording live data dont know if its enough
FUEL TRIM DATA
MISFIRE DATA
OB2 CUSTOM LIST
what I noticed is your ltft is staying negative. Which means your slightly rich. Try
unplugging the maf to see if fuel trims come up or try tapping on the connector portion
with the handle of a screw driver to see if ltft comes up.Diagnosing with Fuel Trims
Fuel trims can help you zero in on the problem, especially when there are no other trouble codes present. Knowing whether a vehicle is running too rich or too lean will help narrow down your diagnosis. Fuel trims that differ greatly from one cylinder bank to the other will also point you in the right direction. Always evaluate fuel trims at idle and at 2500 RPM.
Running too rich – High negative fuel trim corrections can be caused by MAF sensor problems, high fuel pressure, leaking fuel pressure regulator diaphragm, faulty evaporative emissions components, leaking injectors, defective O2 sensors, exhaust leaks/pinholes before the O2 sensor, coolant temp sensor problems, and base engine issues such as low compression and incorrect camshaft timing.
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