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Old 13-10-2018, 08:33 PM   #7
jb1212
Starter Motor
 
Join Date: Oct 2018
Location: Perth
Posts: 22
Default Re: Fiesta WS 2010 stalling, rough idle, rough drive

Quote:
Originally Posted by jb1212 View Post
Thanks guys. I got a tool and the app and it just so happened the check engine light came on while the car was idling really rough.

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?
FYI the graph above is now here on a permanent link.
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars
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