What does code p1491 mean on an engine?
What Does Code P1491 Mean? The Exhaust Gas Recirculation (EGR) system is used by the Powertrain Control Module (PCM) to recirculate exhaust gases back into the intake manifold of the engine in order to take up space where air and fuel would be.
What does Mil code p1491 mean on Honda Odyssey?
In some 1999–2003 Honda Odysseys and 2003 Honda Pilots, the EGR system may become contaminated or clogged. If this happens, the vehicle may hesitate or surge during light acceleration, and the MIL (malfunction indicator lamp)may come on with DTC P0401 (EGR insufficient flow) or P1491 (EGR valve insufficient lift).
When does the EGR solenoid set p1491?
When the PCM pulses the EGR solenoid on to a set location but does not see it reach that set location via the position sensor, code P1491 is set in memory. Code P1491 is a manufacturer specific code, mostly utilized by Honda, Acura and Isuzu.
How much does it cost to diagnose Honda code p1491?
The cost of diagnosing the P1491 HONDA code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
How much does it cost to get a Nissan p1491 code?
The cost to diagnose the P1491 NISSAN code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.
What does p1491 mean on a Dodge Charger?
P1491 DODGE Meaning With the key on or engine running, system voltage over 10v, fan relay commanded on, the Powertrain Control Module (PCM) detects a shorted or open condition in the relay control circuit. Test the fan relay resistance (it should be 30-70 ohms). Refer to code repair chart in other manuals or media.
What is the p1491 code on an Acura?
A position sensor indicates how far the valve has moved. When the PCM pulses the EGR solenoid on to a set location but does not see it reach that set location via the position sensor, code P1491 is set in memory. Code P1491 is a manufacturer specific code, mostly utilized by Honda, Acura and Isuzu.
How much does it cost to repair a p1491 Jeep?
The cost of diagnosing the P1491 JEEP code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
What to do if your fault code is p1491?
If the P1491 is the only active fault code present, and there are no updates/TSBs for your particular vehicle, then the next step is to locate the EGR Valve / Lift sensor / position sensor. You can usually find the EGR valve mounted between the intake and exhaust manifold of the engine. Once located, visually inspect the connectors and wiring.
Why is my EGR valve not setting p1491?
The most likely problem is the EGR valve / solenoid. If the P1491 code stays active and the P1498 does not set, we will need to test the sensor’s / solenoid’s associated circuits. At this point it may be wise to seek assistance from a trained automotive diagnostician.
In some 1999–2003 Honda Odysseys and 2003 Honda Pilots, the EGR system may become contaminated or clogged. If this happens, the vehicle may hesitate or surge during light acceleration, and the MIL (malfunction indicator lamp)may come on with DTC P0401 (EGR insufficient flow) or P1491 (EGR valve insufficient lift).
The most likely problem is the EGR valve / solenoid. If the P1491 code stays active and the P1498 does not set, we will need to test the sensor’s / solenoid’s associated circuits. At this point it may be wise to seek assistance from a trained automotive diagnostician.
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.