View Single Post
  #19  
Old 05-16-2009, 10:45 AM
NiftySVX NiftySVX is offline
Registered User
 
Join Date: Sep 2002
Location: Oklahoma City, Oklahoma
Posts: 836
Send a message via AIM to NiftySVX
Re: A question for the Transmission experts

I spent some time with the car this morning, and actually went through some diagnosis instead of poking around between customer jobs like I had been all week. I moved the TPS while the engine was running and finally got line to jump up to about 100. I then was able to rev the engine (in D) with the brakes locked down and line would start to come up, but then it would abruptly fall off back to 75 at a little over 5-10% throttle, and never come back up. I made a mistake by following the service manual's instructions for checking the TPS for resistance, but really I should have measured the voltage across the sweep. I'm not sure why I didn't do that in the first place. And after actually looking at the sensor diagrams in the manual it became obvious that it doesn't have idle contacts. I am still going to inspect the switch, and I am looking forward to my line pressure gauge that is gonna sit right below the radio.
__________________
2007 GS 450h-Active Stabilizer/Radar cruise
1994 L Blue 3.70 VTD



ASE Master Automobile
ASE Advanced Level Specialist
Toyota Master Diagnostic Technician (former life)
Reply With Quote