is strictly prohibited, as this may lead to a violation of the throttle position.
It is recommended to replace the throttle body with a new one and send
the removed throttle body to Delphi for final analysis.
(3) Using a diagnostic scanner, get a fault code that will help to preliminarily
determine the cause of a malfunction related to the throttle position
sensor or other input
3. Troubleshooting:
TPS1
(4) Troubleshooting DC motor: remove the air filter hose connected to the
throttle body. If you do not have a diagnostic scanner and diagnostic
software, turn on the ignition with the engine off
turns jerky and no malfunctions
ÿ Electronic throttle control
position
throttle block.
Minimum
electrical signal.
TPS2
• From fully closed to fully open position: 150 ms or
less
84.16–94.76%
air entering the engine.
position
(1) Throttle valve assembly fails due to excessive carbon deposits. Throttle
valve will not close completely or become blocked by contaminant
buildup, poor fuel quality, backfires (which affect air supply), or reverse
shaft rotation (which
and the nature of the engine).
open
5.24–15.84%
3. Throttle valve response time (necessary conditions
for testing: voltage at the motor terminals 12-16.5 V,
temperature 25 °C):
1. Appointment
Fully
facilities.
laziness.
affects the air flow at idle
position
wiyam:
Is there a sound when it is opened? This is necessary
for a preliminary assessment of the cause of malfunctions,
(5) Throttle position sensor test: Apply 5V DC to the low and high voltage
terminals of the throttle position sensor, check if the voltage of the TPS1
and TPS2 signals is within acceptable limits when the throttle is fully
opened from the fully closed position, and if the voltage changes steadily.
If, when voltage is applied, the throttle valve
electrical part, the most likely cause of throttle failure is damage to the
drive. In this case, it is not recommended to open the cover of the drive
mechanism, and applying any lubricant
2. Features:
2. Temperature adaptation to working conditions
Minimum
Fully
associated with output or output signals
open
(a) The electronic throttle control unit provides control of the amount of delivery
8.60–9.40%
90.60–91.40%
and check if the throttle valve opens or
1. Throttle position sensor measurement range:
• From fully open to fully closed position: 100 ms or less
(2) Required measures: clean with a cleaning
position
4C20 Gasoline Engine Repair Manual
Electronic Throttle Body
138
Machine Translated by Google
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