WebAug 23, 2014 · The maximum amount of HC's allowed on the smog is 58 at 15mph and 34 at 25mph. My NOx levels were VERY high double the maximum limit. At 15mph my car measured 1390 of NOx and the limit is 483 and at 25mph it measured at 1159 and the limit is 494. I went to a muffler shop and had a magnaflow cat installed and had the car retested. 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:
Honda JDM ENGINE INC
WebNov 16, 2024 · Posts: 6. California SMOG Help Needed - High NOX at 15mph. Hi 4runners, Need your help on passing my Smog... Facts: -1997 4Runner SRS Limited 4WD - Stock with 175k miles. -Engine was rebuit about 5k miles ago after radiator broke and it over heated. - Since then check engine light was on for piston misfire but since was running fine and … WebJan 15, 2016 · HC, CO all low well within limits. vehicle has 187,000 miles on it. perform a chrysler top end cleaning (better version of sea foam) nox drops to 1,000 NOX at 15, 880 … rbx racing
Failed Smog test for NOx emissions too high at the 15mph test
WebJul 1, 2013 · edjack, the smog facility was only about 6 miles away. I spent maybe 8-10 min on the highway along with a few local roads. I turned off the car when I parked for maybe 5 min before the tech drove it in during the test. After I replace the pre-cat O2 sensors I will drive it hard for a good while before doing the test. WebSep 9, 2012 · 15mph 14.8 - 0 - 1 - .02 - 655 25mph 14.8 - 0 - 1 - .01 - 0 Those are all the measured numbers The 15mph max for NO is 467, and that is the only thing I failed. So to make this clear, I have 2 questions 1. Does the missing exhaust component deal with NO? 2. Why does the NO number drop to 0 at 25mph? WebJun 23, 2024 · NOx is usually caused by high peak combustion temperatures and an EGR system can lower the peak temperatures. It could also be from over advanced timing, but … sims 4 how to get abducted by aliens cheats