Acceleration problem..Can duplicate with motor off.
This an Update to my original question on this subject: Acceleration problem:
Can duplicate with motor off (2006 Camry XLE 66,000 miles)
To: Tony Ciccotelli: (and others)
2/3/20 Monday 3am **New to your forum so I don't know exactly how to reply
to your email comments to my question. So I am leaving a comment as an
answer on the forum with a photo.
Another question, how can I reply to your email messages - the address
says NO REPLY.
By the way, I could not find your answer on the forum but I did get an email
from you (2 of them). Thank you.
Sorry I posted the same question twice since I thought I did not enter the first
one correctly.
** You mentioned I should replace the lowest cost part to first replace if
unsure of the actual culprit. You mentioned the PPS or Pedal Position
sensor. as the possible problem.
** As I mentioned in my original question I did remove the pedal and
measured the resistance of the 2 pots on the sensor versus Pedal Travel and
plotted it on a graph (See attachment). The results agree quite dramatically
(good correlation) (see photo in attachment) with a wonderful instructive
video for everyone I found at YouTube Channel Toyota USA by Paul
Williamson of Toyota University. titled: Safety Features of Electronic Throttle
Systems (ETCS) Toyota. See this link
: https://www.youtube.com/watch?v=jOaYGSU3boM I
** Strategy 1: Will go ahead and back-probe the PPS with ignition on, motor
off to confirm actual operation. My only method is to back-probe the
connector at this time very carefully. If I measure both sensor voltages
proportionately rising with pedal travel while the Throttle Body vane does not
move till 50% pedal travel is occurs then I can confirm the Throttle Body
motor is the next problem assuming the motor output from the PCM
computer is fine.. Do you agree with this strategy?.
** Strategy 2: If I decide to replace the Throttle Body, I priced a TB at
Autozone by Durolast and it is $212 less 20% discount so would be one
of aftermarket lowest cost solution or I or the OEM part for $356 online from
toyotapartsdeal.com.or similar site. Probably not worth returning
it if it does not solve the problem, but an option.
** I will double check if there is any recall of my VIN regarding acceleration
issue but I believe that did not apply to my particular auto. Thanks for the
reminder.
MarioG - GuruPKPHX