Fuel Tank Pressure Sensor Voltage Chart
Have a p0446 code 2006 chevy tahoe 5 3 looking for the return voltage for the fuel tank pressure sensor. Htrx2 ho2s sensor 2 downstream heater control on off iac idle air control.
Symptoms Of A Bad Fuel Tank Pressure Sensor
Just looking for some specs for this sensor.
Fuel tank pressure sensor voltage chart. Observe the fuel tank pressure sensor voltage using a scan tool. The evap system is designed to keep all gasoline vapors within your car s fuel system after you have fueled it up at the. The fuel tank pressure sensor has the final say in telling the computer if the tank pressure is holding during a key on pressure test.
Although the pressure sensor is often the cause of a p0452 or p0453 there are other possible causes. My question is what is the maximum variance allowed for the the fuel tank pressure sensor voltage. The fuel tank pressure sensor does all this by monitoring the pressure both positive and negative inside your fuel tank.
This vehicle sensor is at 3 06 volts. The ignition switch is in the run position. Conditions for running the dtc.
You can clearly see the relationship in the graph. It read a consistent 0 1 psi except then the purge valve voltage went down. Go to step 9.
Probe the fuel tank pressure sensor ground circuit with the test lamp j 34142 b connected to b at the fuel tank pressure sensor jumper harness pcm side. Conditions for setting the dtc. Fuel tank pressure goes to 0 2 psi when the voltage from the evap valve went down then returned to 0 1 psi when the voltage went back up.
Is the test lamp. This sensor is used to measure the pressure in your vehicles evap emissions system loading. The ntk fuel tank pressure sensor is a premium quality replacement sensor for your vehicle.
This dtc sets when the fuel tank pressure sensor signal goes below a predetermined value. I know for a fact that this variance would cause a fault on a honda and toyota but unable to find what the allowable. Engine code p0446 fuel tank pressure sensor 2007 chevy avalanche round 4 of 4 duration.
Some google searching leads me to believe it should be 1 5 volts. This sensor is an integral part of your car s evaporative emissions system also known as evap. Notice fuel tank pressure.
I have 2 8 volts with gas cap off and truck running. Is the fuel tank pressure sensor voltage below the specified value. Frt fuel rail temperature voltage volts ftp fuel tank pressure input kpa in h2o ftp fuel tank pressure input volts fuelpw1 injector pulse width bank 1 milliseconds fuelpw2 injector pulse width bank 2 milliseconds.
All the specs i read are 3 34 volts to 3 4 volts with the system at atmospheric pressure. The fuel tank pressure sensor voltage is less 0 1 volts. Fuel pressure sensor trouble p018b p018c p2635 duration.
Go to step 14. If this sensor isn t working correctly the computer gets false information and turns on the check engine light. The pcm uses the fuel tank pressure sensor voltage for evap system leak detection.
Thanks jun 3 2017 at 8 56 pm 2.
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