Question about Cars & Trucks
The volt is too high on the came sensor
The cam sensor outputs voltage pulses when the engine is running. The sensor is powered by the engine's computer, which typically provides 5VDC to power the sensor. With the engine not running, turn on the ignition switch. A cam sensor has three connections: Power (5VDC), signal output (% or 0 VDC varies with cam position), and ground return. Measure the signal voltage from the cam sensor wiuth repsect to ground. If it is 5V, slightly turn the engine's crank with a wrench until the cam sensor signal drops to zero volts. You should be able to see the signal voiltage switch between 5V and 0V while turning the crank slowly. If so, the sensor is working properly. If the signal doesn't change, the sensor is likely defective and should be replaced. They do fail.
Posted on Dec 13, 2014
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Posted on Jan 02, 2017
replace ignition coil make sure by dealer the right mode is used when ordering if not ordered right you will get a difference in engine volts
Posted on Jun 07, 2008
SOURCE: 2002 GMC Sierra High Voltage
could be just a bad gauge,thak it too auto zone and have them test it while its on the truck,if it reg the same on their tester then your got a short
Posted on Mar 01, 2009
SOURCE: P1296 No 5 Volts To MAP Sensor
The PAF sensor talks to the ECU and the ECUtells theNAF sensor when to talk. Any voltage to any sensor comes from the ECU. if you have jump started or shorted the sysrem, it coukd take out the ECU. we won't stop on that though, Now you need to go fuse chkg and make sure the Mass Air Flow is securely pligged into its connector. The MAF sensor is the first sensor in the ducting leaving the air filter. Do that before you ck fuses so you don't waste too much time. Good luck
Posted on May 30, 2009
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