Your fuel pressure should be 38-44psi. Mine was 41psi but hesitated horribly on a snap throttle. Also checked the blue/orange wire under the driver side back seat with a clamp style volt meter (www.amazon.com/dp/B08MTCMWLB?psc=1&ref=ppx_yo2ov_dt_b_product_details). Mine read 4.7 amps. With 41psi fuel pressure & 4.7 amps, I shifted my focus when I saw the MAF sensor randomly jumping around. Should read about 3 g/s at idle and about 10 g/s at 2500 rpm, mine went to 22 g/s and would not go over 2000 rpm for a short period, but 5 minutes later was fine. I replaced the MAF (www.amazon.com/dp/B004J398Y8?psc=1&ref=ppx_yo2ov_dt_b_product_details). I did replace the fuel regulator prior which helped some but was not the main problem. I changed the fuel filter also because I did not know how old the current one was. My 4runner starts & runs great now.
Thank you for your utube video. Great halp. I bought the parts as you recommended in this video. Can you please recommend a fuel pressure tester that fit the schrader valve that you reoommend in the video. I went to autozone and their schrader valve is much bigger than the one you recommended. Thnk you
Thank you for sharing. I’m in the process of doing this to check on fuel pump. I have a 01, 3.4L.
Your fuel pressure should be 38-44psi. Mine was 41psi but hesitated horribly on a snap throttle. Also checked the blue/orange wire under the driver side back seat with a clamp style volt meter (www.amazon.com/dp/B08MTCMWLB?psc=1&ref=ppx_yo2ov_dt_b_product_details). Mine read 4.7 amps. With 41psi fuel pressure & 4.7 amps, I shifted my focus when I saw the MAF sensor randomly jumping around. Should read about 3 g/s at idle and about 10 g/s at 2500 rpm, mine went to 22 g/s and would not go over 2000 rpm for a short period, but 5 minutes later was fine. I replaced the MAF (www.amazon.com/dp/B004J398Y8?psc=1&ref=ppx_yo2ov_dt_b_product_details). I did replace the fuel regulator prior which helped some but was not the main problem. I changed the fuel filter also because I did not know how old the current one was. My 4runner starts & runs great now.
Thank you for your utube video. Great halp. I bought the parts as you recommended in this video. Can you please recommend a fuel pressure tester that fit the schrader valve that you reoommend in the video. I went to autozone and their schrader valve is much bigger than the one you recommended. Thnk you
www.amazon.com/dp/B000R5IASC?ref=ppx_yo2ov_dt_b_fed_asin_title
Which scanner do you use?
Blue Driver - www.amazon.com/dp/B00652G4TS?psc=1&ref=ppx_yo2ov_dt_b_product_details