EVOscan: TPS not registering...
Dec 7, 2006, 08:53 PM
#1
Evolved Member
Thread Starter
iTrader: (16)
Join Date: Oct 2005
Location: Newport News, VA
Posts: 601
Likes: 0
Received 0 Likes
on
0 Posts
EVOscan: TPS not registering...
I was using EVOscan tonite and it showed my TPS being 69-71% when I went WOT. What could be the cause?(Im thinking possibly a faulty TPS, but not sure).
Dec 8, 2006, 12:35 PM
#3
Former Sponsor
iTrader: (56)
Join Date: Sep 2004
Location: DFW, TX
Posts: 2,701
Likes: 0
Received 0 Likes
on
0 Posts
what is the range of the tps? when you are sitting stationary idling, what does it say for TPS? and then floor it? the way you described the problem it just sounds like you aren't pressing the gas pedal all the way down.
if you are, then your TP sensor is most likely positioned improperly on the throttle body. adjust accordingly.
if you are, then your TP sensor is most likely positioned improperly on the throttle body. adjust accordingly.
Dec 8, 2006, 01:15 PM
#4
Originally Posted by KevinD
what is the range of the tps? when you are sitting stationary idling, what does it say for TPS? and then floor it? the way you described the problem it just sounds like you aren't pressing the gas pedal all the way down.
if you are, then your TP sensor is most likely positioned improperly on the throttle body. adjust accordingly.
if you are, then your TP sensor is most likely positioned improperly on the throttle body. adjust accordingly.
Last edited by heyzeus11; Dec 8, 2006 at 01:22 PM.
Dec 9, 2006, 08:01 AM
#6
Normal value at idle should be 10-17% on most MUT loggers.. Most of the time we look at it as volts though.. I think .7 volts is the idles spec.. I think on my car it registers 100% at just over 3/4 throttle..
70% of the value of Evoscan and Mitsulogger is as a diagnostic tool, which means using it at idle, cruising around, you can pick up lots of valuable tuning data by doing that. Thats how most of us fine-tune our injectors since getting our trims "in check" ultimately allows our injectors to be scaled correctly. Plus drivability is 80% of what tuning is about...
Sounds like your TPS may need to be adjusted..
70% of the value of Evoscan and Mitsulogger is as a diagnostic tool, which means using it at idle, cruising around, you can pick up lots of valuable tuning data by doing that. Thats how most of us fine-tune our injectors since getting our trims "in check" ultimately allows our injectors to be scaled correctly. Plus drivability is 80% of what tuning is about...
Sounds like your TPS may need to be adjusted..
Last edited by MalibuJack; Dec 9, 2006 at 08:05 AM.
Trending Topics
.. Thanks!
Dec 9, 2006, 07:07 PM
#12
Evolved Member
Thread Starter
iTrader: (16)
Join Date: Oct 2005
Location: Newport News, VA
Posts: 601
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MalibuJack
Normal value at idle should be 10-17% on most MUT loggers.. Most of the time we look at it as volts though.. I think .7 volts is the idles spec.. I think on my car it registers 100% at just over 3/4 throttle..
70% of the value of Evoscan and Mitsulogger is as a diagnostic tool, which means using it at idle, cruising around, you can pick up lots of valuable tuning data by doing that. Thats how most of us fine-tune our injectors since getting our trims "in check" ultimately allows our injectors to be scaled correctly. Plus drivability is 80% of what tuning is about...
Sounds like your TPS may need to be adjusted..
70% of the value of Evoscan and Mitsulogger is as a diagnostic tool, which means using it at idle, cruising around, you can pick up lots of valuable tuning data by doing that. Thats how most of us fine-tune our injectors since getting our trims "in check" ultimately allows our injectors to be scaled correctly. Plus drivability is 80% of what tuning is about...
Sounds like your TPS may need to be adjusted..
Does anyone know how to adjust the TPS?(thanks Mjack for the input)
Dec 10, 2006, 02:23 AM
#13
Evolving Member
Join Date: Sep 2006
Location: California
Posts: 368
Likes: 0
Received 0 Likes
on
0 Posts
another possibility, check to make sure your throttle cable isnt loose, and make sure its hooked up on all the cable brackets, ( the one mounted on the front of the valve cover that it loops through). even if that dosent fix it its still a good thing to make sure your throttle cable isnt loose.
Dec 10, 2006, 04:19 PM
#14
Evolving Member
iTrader: (15)
Join Date: Aug 2005
Location: [North] Dallas, TX
Posts: 486
Likes: 0
Received 0 Likes
on
0 Posts
Yes. It is adjusted be loosening the two screws that fasten it to the TB. You rotate the sensor until the reading is within desired range...retighten the screws.
Checking the throttle cable adjustment is also a good idea as mentioned above in case it came loose and is not opening the throttle all the way.
Checking the throttle cable adjustment is also a good idea as mentioned above in case it came loose and is not opening the throttle all the way.
Originally Posted by EVOLVEU
Does anyone know how to adjust the TPS?(thanks Mjack for the input)
Dec 10, 2006, 04:32 PM
#15
Evolving Member
iTrader: (13)
Join Date: Oct 2003
Location: Norfolk, VA
Posts: 148
Likes: 0
Received 0 Likes
on
0 Posts
I would make sure teh tactrix cable isn't the culprit (as well as evoscan version). You can use mine to test/verify if you like.
James
James
Last edited by boyd494; Dec 10, 2006 at 04:43 PM.