Ecoboost Performance Forum

Ecoboost Performance => Troubleshooting, Maintenance, TSB Articles => Troubleshooting => Topic started by: ridered74 on April 03, 2020, 12:01:53 AM

Title: P0020 Code
Post by: ridered74 on April 03, 2020, 12:01:53 AM
For the last two months my car was idling a little rough. I figured it was just the plug gaps being a little too stretched out since I hadn't checked them all winter. Last week I got a check engine light when I started the car up and when I pulled the code it was P0020. Checked the wiring for breaks, nothing visible on either so i cleared the code and went about my business. Idle was still rough, about 200 miles later the code came back. Cleared it, came back again the next time I drove it.

To troubleshoot, I removed the plug, put one end of my voltage tester into each plug, then held the engine start button to put it in the "run" position. It read just over 9 volts, so I started bending the wires with my fingers. When I did this the voltage dropped to zero, then would go back to 9 then back to zero.

That told me the issue is the wires, not the solenoid. Next I bent each wire separately and was able to determine that the issue was with the white and orange wire, not the green wire that everyone else seems to have issues with.

I cut both wires so it would be easier to work on the plug and ended up taking the plug apart as far as I could so that I could pull the entire white/orange wire out and rewire it. I also ordered a replacement plug just in case my macguyver fix does not hold up.

So far so good, idle is smooth as silk again and no more resetting the check engine light every single time I drive it.
Title: Re: P0020 Code
Post by: SHOdded on April 03, 2020, 02:41:37 AM
What year is your SHO?  FoMoCoSHO first reported this fix on his 2015.
Title: Re: P0020 Code
Post by: ridered74 on April 03, 2020, 03:49:42 AM
Quote from: SHOdded on April 03, 2020, 02:41:37 AM
What year is your SHO?  FoMoCoSHO first reported this fix on his 2015.

Mine is a 2015 as well. Must have been a bad year for wiring.
Title: Re: P0020 Code
Post by: SHOdded on April 03, 2020, 06:25:31 AM
I think you are right!  Always something lol.
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