Nissan error code 1491

" Dealer says I need a new evap canister and a new fuel tank w/ estimated cost of $ 1300 installed. P0139 Oxygen Sensor Circuit Slow Response ( B1S2) Technical Description. Oxygen Sensor Circuit Slow Response ( Bank1, Sensor2) What does that mean? This diagnostic trouble code ( DTC) is a generic powertrain code, which means that it applies to OBD- II equipped vehicles. The first thing you would want to do is tell us what year and model your car is. It would also be helpful to know if it is a 4 or 6 cylinder. Kind of hard to diagnose things without at least knowing that. Ive got this service engine code : P1491 and it says Vacuum Valve Cut bypass valve. Not exactly sure what i means, maybe it has to do with the evap canister. I have a nissan altima 2. 4 And i have a code of p1491 which is a Vacuum cut valve bypass valve. Can you tell me as to where this is located and what does the part look like. What does a part like. B0028 NISSAN 4, 457 Views Front Right Side Air Bag Module; B0029 NISSAN 3, 159 Views Right Side Curtain Air Bag Module; B0091 NISSAN 3, 212 Views. 5 Nismo R- Tune Cold Air Intake, 18x8 Maxima rims, Custom In- Dash GPS - Duration: 5: 33.

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    Brendan Armbruster 55, 913 views. Same code( p1491), fuse not blown, fcm changed, controls chanded, fluids pressure correct, condensor fan works, only thing I havent changed is the compressor or pressure switch. But, heated mirrors, AC, heat, and adjuster all dont work. The Exhaust Gas Recirculation ( EGR) system reduces Oxides of Nitrogen ( NOx). NOx is generated by high combustion temperatures. The EGR system lowers peak combustion temperature by recirculating inactive exhaust gas into the air/ fuel mixture, thus reducing NOx emissions. P 1491 code - Answered by a verified Nissan Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. A while back, I received a pending P0455 engine trouble code - gross EVAP leak. After resetting the codes numerous times and tracking down other problems, the ECM settled on a permanent P1491. Nissan OBD- II Trouble Codes. Note: See this page for generic OBD- II codes ( they start with P0* * * ). Recent Nissan Forum Discussions.

    Cranks but won' t start 01 Maxima PLEASE HELP. 01 Maxima Replaced Ecm, immobilizer, and ignition and now car won' t start. If the EVAP canister is OK, and there are no other visual damage to the EVAP system ( e. loose or broken hoses), replacing the vacuum cut valve bypass valve takes care of the problem. There is a factory service bulletin for allNissan models. The vacuum cut valve and vacuum cut valve. Nissan Frontier Check Engine Light Due to Failed EVAP Canister Vent Valve - 95 reports. Learn about this problem, why it occurs, and how to fix it. Nissan Check Engine Light Codes. Welcome to the Nissan Check Engine Light codes page. Below you will find the most complete list of Nissan trouble codes available. alain soto, DTC P1491: EGR Valve Insufficient Lift Usually caused by a bad EGR valve, the solenoid, or the vacuum regulator. You may also remove the intake manifold and clean out the ports, there might be a lot of carbon buildup. Pulled this code yesterday.

    The vehicle is an 03' Altima 2. All I got from the web was that for Nissan it' s about the " Vacuum Cut Valve Bypass Valve" who' s it' s function is to prevent engine vacuum form being applied to the fuel tank except for self test purposes, and it can trigger SES light either from being damaged, clogged or being incorrectly installed. Easy step by step guide on how to repair an automotive code gathering incomplete P1000 trouble code, this information pertains to most OBDII systems. Nissan Sentra Trouble Code 1491 What To Do I Have A 1491 Code That Comes Up On Scan Test. The knock sensor is notorious, it looks like you are not supercharged so it really doesn' t do anything to you. My ' 03 is throwing that code too. Code P1491 in Honda/ Acura vehicles means insufficient EGR valve lift. Note - this is not the same as 0401 for EGR low flow when you have to clean EGR passage in the intake manifold. If code 1491 is not accompanied with 0401 - that could be faulty EGR valve itself. i have a nissan altima 6 cyl se. i have check engine light on which reads code p1124. can you please send information to what that translates too thank you john herbison Fri Aug 29,.

    Always verify that the voltage does not drop out when the valve is operated, or the code will also set. The EGR valve is a common failure. Also if the EGR passages are restricted, it can set this code. This post describes one of the diagnosis steps for the P1491 codes on a 1999 Nissan Altima. Specifically the testing and replacement of the vacuum cut valve bypass valve. This applies to all second generation Nissan Altimas which are 1998, 1999,,. This code is related to the pressure in the AC system and suggests that it is too high. When this happens it is usually a result of some kind of blockage in the system. There is also a pressure sensor located usually on the side of the radiator that when faulty can also cause this code to register. The parts shops main putpose is reading the code and giving you the malfunction for that code. They don' t dig into the rest of the information and diagnose it for you. That also takes some knowledge of how the different functions of the engine work.

    Radiator fan won’ t turn on and trouble code P1491 If you own a Chrysler minivan and it’ s overheating because the radiator fan won’ t turn on, it may be a bad radiator fan relay Many owners report overheating in their minivans because the electric cooling fan will not come on. I have a Nissan Sentra 5 speed with 90, 000 miles on it. The " Check Engine Soon" light has been on for about a month now. On two ocassions the light will turn off for 10 to 15 minutes. This is Nissan and not Infiniti, you should go to Infinitihelp. com, just kidding is the same thing anyway. There is a bulletin for the QX4 for that code. Go to the QX4 bulletins list: Knowledgebase - QX4 - Infinitihelp. com and search for the the p1491 code. I just had a code PO 505, AND A PO 1491.

    WHAT IS THE PROBLEM, these Nissan are full of problems, every time it brings up different codes, this is the first and last time I will ever own a Nissan, is a Disaster from the very beginning, spent over $ 1000, in repair and now got 2 new codes listed above. Welcome to Honda Odyssey Forum : Odyssey Minivan Forums - a website dedicated to all things Honda Odyssey. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. Hi all, I have a Pathfinder that I am trying to make compliant for a friend with a check engine light. The car originally had a few codes due to the idle control valve. P1491 Malfunction In EGR System Remove the egr and clean it be sure to remove all the carbon deposits, also check the vacuum diafragm for leaks and replace if faulty. OBDII/ EOBD diagnostic code definition. More than 18000 codes for all autos. Trouble code definition for code P1491. I have a Nissan Pathfinder with 207k on the clock and it is passing ODB- II codes P1491, P1110 and P1135.