Question about Volvo 240
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Posted on Jan 02, 2017
I had the same problem with my 2003 denali and came to find out that it was the battery causing the problem. the battery with sufficient power will dictate the tps. if the battery is low or bad, it won't have enough juice to allow the tps to. work. get your battery checked.
Posted on Mar 17, 2009
I put a new fuel pump, fuel filter, and a fuel pump relay and the fuel pump is still not coming on. I am not getting any fuel. Can you please tell me what it might be.
Posted on May 02, 2009
This is a very easy part to change. It has 2 screws and 1 electric connector. One end of the TPS has an elongnated screwhole and the other screwhole is just a hole. At most you may need to use a pair of pliers on the screwdriver to grip the screwdriver better. The screws were put in to stay.
The back of the TPS has a slot which fits on the shaft of the Butterfly flap in the Airhorn. You just fit the slot over the shaft and then everything will be flush to the Airhorn Then tighten the screws, plug in the electric connector and usually you are done. If the idle speed does not seem as high or is higher than before that is what the elongnated screwhole is for. You would loosen both screws and twist the TPS to adjust. There is only slight adjustment possible.
Posted on May 16, 2010
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Cherokee, Grand Cherokee, 1999-2005
Throttle Position Sensor
The 3 wire Throttle Position Sensor (TPS) is mounted on the throttle body and is connected to the throttle blade.
The TPS is a 3wire variable resistor that provides the Powertrain Control Module (PCM) with an input signal (voltage) that represents the throttle blade position of the throttle body. The sensor is connected to the throttle blade shaft. As the position of the throttle blade changes, the resistance (output voltage) of the TPS changes.
The PCM supplies approximately 5 volts to the TPS. The TPS output voltage (input signal to the PCM) represents the throttle blade position. The PCM receives an input signal voltage from the TPS. This will vary in an approximate range of from .26 volts at minimum throttle opening (idle), to 4.49 volts at wide-open throttle. Along with inputs from other sensors, the PCM uses the TPS input to determine current engine operating conditions. In response to engine operating conditions, the PCM will adjust fuel injector pulse width and ignition timing.
The PCM needs to identify the actions and position of the throttle blade at all times. This information is needed to assist in performing the following calculations:
Ignition timing advance Fuel injection pulse-width Idle (learned value or minimum TPS) Off-idle (0.06 volt) Wide Open Throttle (WOT) open loop (2.608 volts above learned idle voltage) Deceleration fuel lean out Fuel cutoff during cranking at WOT (2.608 volts above learned idle voltage) A/C WOT cutoff (certain automatic transmissions only)
Removal & Installation
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