Question about 1989 Cadillac Sedan DeVille
We need to know the voltages from signal wire in respect to wide open throttle do to idle for a 1989 Cadillac Deville V8 DFI injection.
This requires a certain operation to set. If you really need to know reply and I can help.
Posted on Jun 20, 2010
Tips for a great answer:
May 11, 2014 | 1994 Ford Probe
Apr 19, 2012 | 2003 Dodge Caravan
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
Dec 31, 2011 | 2001 Jeep Grand Cherokee
Oct 10, 2011 | 1999 Dodge Ram
Sep 28, 2011 | 1998 Mercury Villager
Jul 11, 2011 | Nissan Quest Cars & Trucks
Jun 17, 2011 | 1995 Cadillac DeVille
May 09, 2011 | 1993 Cadillac DeVille
Mar 08, 2010 | 2002 Oldsmobile Alero
Jan 10, 2009 | 1997 Dodge Ram 1500 Club Cab
179 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: