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Power loss

2605 Views 65 Replies 7 Participants Last post by  X+ Pilot
hello I have a loss of power in my truck, and no error code, has anyone ever had a problem like this? there is more than half the fuel tank.
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There are 3 places I'd check with these codes. Check the plugs and wiring at the Throttle Pedal, Throttle body TPS sensor and the plug on the supercharger bypass. If nothing appears damaged or disconnected, have you tried disconnecting the battery for a few minutes? Can your scan tool perform a TPS relearn?
Best thing is go to the dealer to properly diagnose the issue. At least you know exactly what is wrong. Then you can order the parts online and install them yourself. I will send the codes to my dealer and ask them for feedback to know if its the throttle body or pedal
My recommendation is to get some electric contact cleaner, unplug the battery, unplug the throttle sensor connector, clean it, check the wires and make sure nothing is broken, reconnect it and see if the same thing happens.
Best thing is go to the dealer to properly diagnose the issue. At least you know exactly what is wrong. Then you can order the parts online and install them yourself. I will send the codes to my dealer and ask them for feedback to know if its the throttle body or pedal
I did exactly that today, I went to the dealer, they told me I had to make an appointment for a diagnosis, and they don't have room until May 15th, it's is incredible to wait a month and a half for a diagnosis. and they also told me that the diagnosis can reset everything and reset the TH
My recommendation is to get some electric contact cleaner, unplug the battery, unplug the throttle sensor connector, clean it, check the wires and make sure nothing is broken, reconnect it and see if the same thing happens
where exactly is the throttle sensor?
That is strange. Data logging is the only way you’ll know for sure. It’s almost like there an issue with the throttle by wire. If you have HP Tuners, you could try a throttle relearn or try disconnecting the battery for a few minutes and see if that doesn’t reset whatever is going on. Not all DTCs will show up using the on board diagnostics, try hooking up a proper scan tool and see if that tells you anything.
Dang! I called that one early.
My recommendation is to get some electric contact cleaner, unplug the battery, unplug the throttle sensor connector, clean it, check the wires and make sure nothing is broken, reconnect it and see if the same thing happens.
I disconnected the battery all night and I disconnected and cleaned the sensors as requested, this morning I reconnected the battery and still starts the same no power, I will order the throttle body, however I no longer have them performance pages and and driving mode
I disconnected the battery all night and I disconnected and cleaned the sensors as requested, this morning I reconnected the battery and still starts the same no power, I will order the throttle body, however I no longer have them performance pages and and driving mode
The performance pages will come back, either park it outside or go for a 30-60 minute drive (worst case scenario) and it’ll download over the air. The throttle body is different than the throttle sensor. If you are talking about the throttle body that serves as the bypass valve, I do not think you are seeing burn marks, these are just standard solder points in my opinion ( I deal with a lot of these kinds of board in the semiconductor industry). Do you have a HP tuners mvpII? I would start with a throttle relearn and then replace whatever that sensor is, you’ll need to google up some drawings and go through them to figure out the part or use a dealership. Based on the dtc, is sounds like it’s related to the throttle positioning sensor. Did you have any work done or the vehicle cleaned? Anything that would involve the driver’s side foot area? Could just be a faulty connection or partially engaged connector.
The performance pages will come back, either park it outside or go for a 30-60 minute drive (worst case scenario) and it’ll download over the air. The throttle body is different than the throttle sensor. If you are talking about the throttle body that serves as the bypass valve, I do not think you are seeing burn marks, these are just standard solder points in my opinion ( I deal with a lot of these kinds of board in the semiconductor industry). Do you have a HP tuners mvpII? I would start with a throttle relearn and then replace whatever that sensor is, you’ll need to google up some drawings and go through them to figure out the part or use a dealership. Based on the dtc, is sounds like it’s related to the throttle positioning sensor. Did you have any work done or the vehicle cleaned? Anything that would involve the driver’s side foot area? Could just be a faulty connection or partially engaged connector.
indeed there was a cleaning of the vehicle even if at the level of the accelerator pedal, and I had the loss of power 10 minutes after recovering the vehicle. seen how it's gone I'm going to buy an mpvII but I don't know how to use it
today it was 82 fahrenheit I was with the Th stopped at the car wash to refresh it I wash with the karcher. then after I took the road to go home and there full of lights and I lose even more power (already that it lacks power) and I have an error code p2174, is it related to the loss of power that I had?
Speedometer Car Trip computer Odometer Tachometer
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I think it is related. Did you or someone else spray the engine compartment?
“The trouble code P2174 can be described as Throttle Actuator Control System - Sudden Low Air Flow Detected. The error code P2174 would start triggering when the PCM would detect some fault in throttle actuator control system”
With those 3 codes it definitely seems related to the throttle position sensor at the pedal or the throttle body actuator, and if there is a loose conector or broken or stripped wire and water got to it after a wash it makes sense the loss of power symptoms. I’d definitely check, as Vanquish says, for loose connectors or broken/stripped wires.

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Code P2174 Chrysler Possible Causes Restricted air inlet Faulty Manifold Absolute Pressure (MAP) Sensor Manifold Absolute Pressure Sensor harness is open or shorted Manifold Absolute Pressure Sensor circuit poor electrical connection Faulty Throttle Position (TP) Sensor
I had the sensor on the blower lid fail but it through a different code.
I think it is related. Did you or someone else spray the engine compartment?
no, there was no washing in the engine compartment
I just deleted the code p2174 with obd and it no longer came back, Friday a dealer will relearn the accelerator pedal via hptuner. I hope she will regain her strength
That is exactly what I would do next. If it does not calibrate correctly, it will be evident if the throttle pedal or the throttle body is the culprit.
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