P91 message identification mid.
Mack granite bad throttle position sensor.
Whether gas is delivered via carburetor throttle body or fuel injector the proper fuel mixture is critical to a smooth running engine.
Any of these will tell you that there s a problem there.
Top 6 bad throttle position sensor symptoms.
It still runs the same so i guess i ll just replace both of them.
Sometimes a certain spot burns out on the sensor put only a specific spot its a potentiometer so it isnt necessarily good or bad it can have bad spots burns out so when your throttle hits that section your fuel may hiccup for a second while you race past it or just change throttle position.
Most scanners have a feature to monitor engine vitals and throttle position in real time with the engine running but this feature isn t generally much help in diagnosing a tps.
When performing electrical tests wiggle wires and connectors to find intermittent problems.
Failure mode identifier fmi.
Below are common symptoms of a faulty tps.
You can also use it for testing for bad wiring harnesses and connectors.
A vehicle speed sensor is a permanent magnet generator attached to the transmission under the vehicle.
Tps detects how far your throttle plate is open also to assist in measuring engine load.
3 4 1 speed sensor vss 4 2 cooling fan 4 3 auxiliary products number 1 4 4 auxiliary products number 2 4 5 aset iegr wastegate position 4 5 aset cegr vtg position sensor 4 6 tachometer 4 7 speedometer 4 8 customer defined statement 4 9 aset cegr egr valve mechanism 5 1 throttle position sensor.
The sensor monitors several different engine and transmission functions and sends the information to the on board computer.
Fuel air and fire.
Mack granite speed sensors shop by price 000 8400.
In most of the cases all of these symptoms will show together making it easier to detect the faulty component.
I removed the sensor on the front timing cover cleaned it and replaced it.
The throttle position tp sensor is a potentiometer that is mechanically linked to the.
3 voltage high 4 voltage low open 14 invalid parameter identification pid.
3 10 aset cegr engine brake position no.
It will go open and then come right back.
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From mack electronic info system.
One in front and the other on the rear.
I was going to remove and replace both of them.
When i called mack they told me that there is two engine position sensors on this engine.
It is triggered by the turning of the transmission shaft sending a signal which increases.
Mack granite speed sensors.
A faulty throttle position sensor sends incorrect information to the ecm resulting in various issues in the engine its performance and fuel economy.
The engine in your 2007 mack granite cv713 requires three basic things to run.