What is the p1491 code on a 2001 Nissan Altima GXE?
P1491 code coming up on a 2001 nissan altima gxe. It is stated as the “vacuum cut valve bypass valve” what are the steps P1491 code coming up on a 2001 nissan altima gxe. It is stated as the "vacuum cut valve bypass valve" what are the – Answered by a verified Nissan Mechanic
What does the vacuum cut valve on a Nissan Altima do?
The vacuum cut valve prevents the intake manifold vacuum from being applied to the fuel tank. The vacuum cut valve bypass valve is a solenoid type valve and generally remains closed. It opens only for on board diagnosis. The vacuum cut valve bypass valve responds to signals from the ECM.
Where is the vacuum cut valve bypass valve?
The vacuum cut valve and vacuum cut valve bypass valve are installed in parallel on the EVAP purge line between the fuel tank and the EVAP canister. The vacuum cut valve prevents the intake manifold vacuum from being applied to the fuel tank. The vacuum cut valve bypass valve is a solenoid type valve and generally remains closed.
Why is the vacuum cut valve not working?
Vacuum cut valve bypass valve does not operate properly. The vacuum cut valve and vacuum cut valve bypass valve are installed in parallel on the EVAP purge line between the fuel tank and the EVAP canister. The vacuum cut valve prevents the intake manifold vacuum from being applied to the fuel tank.
The vacuum cut valve prevents the intake manifold vacuum from being applied to the fuel tank. The vacuum cut valve bypass valve is a solenoid type valve and generally remains closed. It opens only for on board diagnosis. The vacuum cut valve bypass valve responds to signals from the ECM.
What does the p1491 code on a Nissan mean?
If the EVAP canister is OK, and there are no other visual damage to the EVAP system (e.g. loose or broken hoses), replacing the vacuum cut valve bypass valve takes care of the problem. There is a factory service bulletin for all 1998-2002 Nissan models. What does this mean? The cost of diagnosing the P1491 NISSAN code is 1.0 hour of labor.
The vacuum cut valve and vacuum cut valve bypass valve are installed in parallel on the EVAP purge line between the fuel tank and the EVAP canister. The vacuum cut valve prevents the intake manifold vacuum from being applied to the fuel tank. The vacuum cut valve bypass valve is a solenoid type valve and generally remains closed.
Vacuum cut valve bypass valve does not operate properly. The vacuum cut valve and vacuum cut valve bypass valve are installed in parallel on the EVAP purge line between the fuel tank and the EVAP canister. The vacuum cut valve prevents the intake manifold vacuum from being applied to the fuel tank.
P1491 code coming up on a 2001 nissan altima gxe. It is stated as the “vacuum cut valve bypass valve” what are the steps P1491 code coming up on a 2001 nissan altima gxe. It is stated as the “vacuum cut valve bypass valve” what are the – Answered by a verified Nissan Mechanic
What is the diagnostic code for a Nissan check engine light?
Follow scan tool manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTC’s). Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code listfor definitions on all other Nissan diagnostic trouble codes. Manufacturer Specific Codes P1105MAP/BARO Pressure Switch Solenoid Valve
How to use the vacuum cut valve bypass valve?
Turn ignition switch “ON”. Start engine and warm it up to normal operating temperature. Turn ignition switch “OFF” and wait at least 5 seconds. Start engine and let it idle for at least 1 minute. Select “VC CUT/V BP/V P1491” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode with CONSULT-II.
Follow scan tool manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTC’s). Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code listfor definitions on all other Nissan diagnostic trouble codes. Manufacturer Specific Codes P1105MAP/BARO Pressure Switch Solenoid Valve
Turn ignition switch “ON”. Start engine and warm it up to normal operating temperature. Turn ignition switch “OFF” and wait at least 5 seconds. Start engine and let it idle for at least 1 minute. Select “VC CUT/V BP/V P1491” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode with CONSULT-II.