Question about 1987 Chevrolet Camaro
Welcome to FIxYa.com Do you have any codes ? What types of repairs were done and describe how the no idle came about Regards, Lee Davidian A Four Thumbs up ^^^^ is appreciated for answering your
question. And please take the time to rate me by leaving a testimony. Thank you, Lee Davidian
Welcome to FIxYa.com
Do you have any codes ?
What types of repairs were done and describe how the no idle came about
Regards, Lee Davidian
A Four Thumbs up ^^^^ is appreciated for answering your question. And please take the time to rate me by leaving a testimony. Thank you, Lee Davidian
Posted on Oct 17, 2010
A vacuum leak could cause a fast idle. Spray starting fluid around the intake manifold and see if the engine revs up. The tps will elevate the idle to keep it running if a vacuum leak is present.
Posted on Oct 17, 2010
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Posted on Jan 02, 2017
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Jul 26, 2017 | Dodge Cars & Trucks
Jun 24, 2012 | Cars & Trucks
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
3.7L & 4.0L
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