TPS at idle - Ford Focus Forum, Ford Focus ST Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 01-17-2013, 05:50 PM   #1
SanduskySerpents
Focus Enthusiast
 
Join Date: Aug 2010
Fan#: 78065
Location: Va Bch, VA
What I Drive: 02 Silver Focus SE

Posts: 202
FF Reputation: 4 SanduskySerpents Good Standing Member
Buy-Sell-Trade Rating: (1)
TPS at idle

02 Zetec engine, with low rough idle. Live data shows Abosolute tps at 19.1 % this seems high for idle . Anyone know what the spec is supposed to be? Rpm is between 650-720 fluctuation.


SanduskySerpents is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 01-17-2013, 06:33 PM   #2
zpellicone
Focus Enthusiast
 
Join Date: Oct 2012
Fan#: 105007
Location: Charlotte, NC
What I Drive: 2001 Pitch Black ZTS

Posts: 56
FF Reputation: 1 zpellicone Good Standing Member
Buy-Sell-Trade Rating: (0)
Ive got an 01 zetec and using the dealer test mode I read my idle fluctuates between 640-700 depending on engine temp. Ive cleaned my TB on several occasions, I figure this RPM is normal with the miles on the engine. Id recommend replacing the passenger motor mount and specifically the lower torque mount. The aforementioned mount drastically improved idle while in drive. The passenger mount smooths vibrations in acceleration as well as in park and reverse (Atleast with an ATX)
zpellicone is offline  
    Reply With Quote
Old 01-17-2013, 06:54 PM   #3
SanduskySerpents
Focus Enthusiast
 
Join Date: Aug 2010
Fan#: 78065
Location: Va Bch, VA
What I Drive: 02 Silver Focus SE

Posts: 202
FF Reputation: 4 SanduskySerpents Good Standing Member
Buy-Sell-Trade Rating: (1)
It's not a vibration issues it's a drivability issue. Incomplete fuel burn on new plugs. I still don't think 19% tps at idle is normal . My thought is ECM is reading an partially open throttle and compensating other systems
SanduskySerpents is offline  
    Reply With Quote
Old 01-18-2013, 12:04 AM   #4
amc49
Focus Fanatic
 
Join Date: Mar 2012
Fan#: 96610
Location: Fort Worth, TX
What I Drive: 00 wagon, 02 sedan both zetec atx

Posts: 5,034
Points 2,924, Level 33
Points: 2,924, Level: 33 Points: 2,924, Level: 33 Points: 2,924, Level: 33
Level Up 16% Completed
Level up: 16% Level up: 16% Level up: 16%
Forum Activity 45%
Activity: 45% Activity: 45% Activity: 45%
FF Reputation: 23 amc49 Great Standing Member
Buy-Sell-Trade Rating: (0)
ECM actually recalibrates when you change TPS based on the high and low voltages the new one shows, i.e., it does not expect an EXACT match, just close................I get a high % (actually around 19 or so just like yours!) on my scanner too, but in my case it means nothing since both cars run perfect. When I first saw that I thought about it, but time has rendered the point moot. Check the voltage range with VOM and compare to the average numbers given as acceptable. Voltage more important than % since every device can interpret % differently.
amc49 is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

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

BB 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 11:40 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.