.:HSTuners::


::Hondas Wanted::
 

Go Back   HSTuners > Tech Talk > Step By Step
User Name
Password
FAQ Members List Calendar Mark Forums Read

Closed Thread
 
Thread Tools Display Modes
Old 01-13-2002, 04:56 PM   #1
slowEJ6
Registered User
 
slowEJ6's Avatar
 
Join Date: Nov 2001
Location: Oviedo, FL
Age: 42
Posts: 3,195
Throttle Position Sensor Voltage Check

1. Follow the wiring harness from the TPS to the back of the intake manifold and remove it from the firewall. This will give you more room to probe the electrical terminals. Check the electrical connector @ the sensor for a snug fit. Check the terminals in the connector and the wires leading to it for looseness and breaks. Repair is necessary.
2. Using a voltmeter, check the reference voltage from the ECM/PCM. Connect the positive probe to the yellow/blue wire and the negative probe to the ground. It should read app. 5 volts.(you will see 3 diff segments on the TPS - from right to left - 1st segment is Power, 2nd segment is Signal, and 3rd segment is Ground).
3. Next, check the TPS signal voltage. With the engine OFF, throttle fully closed and TPS electrical connector connected, connect the probes of the voltmeter to the red/black wire (positive probe) and ground (negative probe). Note: use a straight pin to backprobe the connector terminal. Gradually open the throttle valve and observe the TPS voltage. With the throttle valve fully closed, the voltage should read about 0.5v. Slowly move the throttle valve and see if the voltage changes as the sensor travels from idle to full throttle. The voltage should increase smoothly to about 4.5v. If the reading are incorrect, replace the TPS sensor.
4. A problem in any of the TPS circuits will set a code. Once a trouble code is set, the ECM/PCM will use an artificial default value for TPS and some vehicle performance will return.
slowEJ6 is offline  
Closed Thread


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 04:05 AM.


Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
© 2006 HSTuners.com