Ford Ranger 4.0 Motor Failure

I have time without entering the site, but I'm back, I have a consultation, I have a failure in the minimum acceleration of a Ford as I said in the matter; 4.0 Ranger, the scanner has passed and this tells me two faults P0505 code and P0122 code, maybe someone can help me no longer to do, I already change TPS and IAC valve and there is no change.

Ford Ranger P0505 OBD-II of the Diagnostic Motor Train (P) Problem Code Description

Car Ranger P0505 OBD-II Trouble code This system automatically controls the idle speed engine at a specified level. The idle speed is controlled through a fine adjustment of the amount of air that passes through the butterfly valve through idle air control
Reason for Ford Ranger P0505 Code P0505

The reason for the Ford Ranger P0505 OBD-II Trople Engine Code is P0505 Malfation of the system

What does that mean? A P0122 code means that the car computer has been detected that the TPS (accelerator position sensor) informs too low voltage. In some vehicles of that lower limit it is 0.17 to 0.20 volts (V). Have you adjusted when you installed it? If the signal value is less than .17V then the PCM establishes this code. It could be an open or a short to mass in the signal circuit. Or it is possible that you have lost the 5VOLT reference voltage. Symptoms symptoms may include: Irregular or low stallling idle The increasing not / little acceleration other symptoms may also be present. A P0122 code may mean that one or more of the following has occurred: TPS not assembled safely TPS Short circuit to ground or other TPS wire defective damaged equipment (PCM) Possible solutions Possible solutions Accelerator position sensor (TPS), wiring connector, and pause wiring, etc. Repair or replace as necessary check the tension in the TPS (see a service manual for your vehicle for specific information). If the tension is too low that is indicative of a problem. Replace if necessary. If the TPS recently replaced it, it may be necessary to adjust. In some vehicles, installation instructions require TPS to be correctly aligned or adjust, consult a repair manual to obtain specific information. If there is no symptom at all, the problem can be intermittent and clear the code can solve the problem temporarily. If this is the case, then you must definitely check the wiring to ensure that you are not rubbing in anything, land, etc. The code can return.

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