WebOct 31, 2024 · I went to go smog it and it only fails NOx at 15 mph. But at 20mph it passes with flying colors which the smog guy says its very weird that its in two different … WebJan 21, 2024 · Toyota 4Runner Forum - Largest 4Runner Forum > Toyota 4Runner Forum > 3rd gen T4Rs > Help: 97 Failed Smog due to high NOx at 15mph, now what? User Tag List: Reply: Page 2 of 2 < 1: 2 Thread Tools: Rate Thread: Display Modes: 01-04-2024, 07:33 PM #16: calnhob. Member : ... California 5vzfe failed smog high NOX: Joachim2311:
1998 Toyota Tacoma 3.4L Failed CA Smog Test. High NOx at …
WebSep 7, 2015 · My 98 Lexus GS300 had tested in 2010 and 2012 at 50% NOx limit at 15mph, while 25mph was low. But most recent test in 2014 it swapped, so it hit 50% of NOx limit … WebNov 26, 2005 · If the problem is a high NOx level, then the reason for that is the combustion temperatures are getting too high. Aside from the obvious things such as a deficient cooling system, an engine that is running lean (that is, too much air and/or not enough fuel) will cause higher combustion chamber temps. ... My NOx was around 1200-1300 at 15MPH … fabfilter software
failed nox emission testing - Ford Truck Enthusiasts Forums
WebOct 31, 2024 · I went to go smog it and it only fails NOx at 15 mph. But at 20mph it passes with flying colors which the smog guy says its very weird that its in two different extremes. Im going to check base timing and my egr when I … Web1997 - 2001 jdm honda cr-v 2.0l engine /1990 - 2001 acura integra high comp b20b engine only. $1200.00. sold. jdm 1990-2001 acura integra b18b 1.8l engine jdm b18b obd1 … WebMar 16, 2012 · The most likely source of the high Hydrocarbon (HC) is clogged or drippy injectors. Change the fuel filter if it is over 48K miles. Ran two or more tanks full of Chevron gas will help clean out the fuel system. The air fuel ratio can be off is the air filter is clogged or the mass air flow sensor give incorrect data to the computer (ECU). fabfilter thomann