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13-10-2018, 12:06 AM | #1 | ||
Starter Motor
Join Date: Oct 2018
Location: Perth
Posts: 22
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I am having issues with my car Issues I get are:
* Stalling at lights sometimes * Not holding a constant idle, going to 500 then 1900 often when out of gear * Driving at 60kph in 5th gear the car seems to jump a little forward sometimes then want to pull back a little sometimes Issue started around time I serviced it when I: -Put new plugs in -New air filter -New aux and timing belts -Adjusted valve clearances with new tappets To troubleshoot I have checked: -Air filter is not causing this (I ran car with/without air filter for a few seconds and it has the same problem both ways) -No obvious cracks in air hoses -Went to Supercheap Auto to check for error codes (I was not impressed with the outcome as they told me my car had lots of errors but could not give any error codes - I will go there again tomorrow and try another store) Any ideas to further troubleshoot by process of elimination? From reading lots of post in this forum I think it could be: -Faulty throttle position sensor -Faulty speed sensor (Ken_AUXR8 suggests this is not my issue so I will look at this as a last resort) -Faulty sensor Thanks for any help!
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars |
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13-10-2018, 08:54 AM | #2 | ||
Chairman & Administrator
Join Date: Dec 2004
Location: 1975
Posts: 107,232
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You are really going to need the codes.
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Observatio Facta Rotae
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13-10-2018, 10:12 AM | #3 | ||
FF.Com.Au Hardcore
Join Date: Nov 2013
Posts: 2,037
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Yep, as per your posts in other threads, get an OBD2 ELM or similar and a copy of Forscan (Windows, iPhone, Android available). Read the codes, and go from there.
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13-10-2018, 04:05 PM | #4 | |||
Starter Motor
Join Date: Oct 2018
Location: Perth
Posts: 22
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Quote:
The error was P2135. From reading about it and then doing some more graphing I conclude that I need to find a replacement throttle body. Below is the graph showing when I constantly hold down the throttle (blue line), the air/fuel mixture command is constant (green line) but the throttle manifold position is changing (red line). Image I don't know of anything else I can do besides changing the throttle body. Any ideas?
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars |
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13-10-2018, 06:17 PM | #5 | ||
FF.Com.Au Hardcore
Join Date: Nov 2009
Location: Sydney
Posts: 1,128
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Had similar stuff in a 2011 fiesta. The throttle body was filthy. Cleaned it. Was never an issue again. Ford’s recommendation on air filter changes is too long!
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2016 Mazda 3 SP25 GT 2019 Hyundai i30 Active. |
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13-10-2018, 07:32 PM | #6 | |||
Starter Motor
Join Date: Oct 2018
Location: Perth
Posts: 22
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Quote:
Some photos of the back and front of it are here: backand front.
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars |
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13-10-2018, 07:33 PM | #7 | |||
Starter Motor
Join Date: Oct 2018
Location: Perth
Posts: 22
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Quote:
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars |
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13-10-2018, 11:00 PM | #8 | |||
FF.Com.Au Hardcore
Join Date: Nov 2009
Location: Sydney
Posts: 1,128
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Quote:
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2016 Mazda 3 SP25 GT 2019 Hyundai i30 Active. |
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15-10-2018, 11:08 PM | #9 | ||
Starter Motor
Join Date: Oct 2018
Location: Perth
Posts: 22
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So I got a new throttle body. $80 second hand, dealers wanted to charge from $90-$200. The revs have stabilised as you can see here. Thanks for all your help.
P.S. As you can see in the image the timing advance is jumping up and down which I will research in the forum now. Also, my cruise control is not working - I will also research that now. P.S.S. I found the Response OBD2 reader from Jaycar for $70 here to work well. I also found the Toggle app for $5 on Google play to work well along with the Realtime Charts plugin for $4 which helped me make easy to view graphs (like the one in this post).
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars |
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