P0020 DTC

[FoMoCoSHO]

These are Bosch injectors and they pretty much pioneered DI.

They are in focus's, F150's, SHO's, Sports, etc, and that's just one manufacturer.

I'm not sure the sampling size here is indicative of a defect.

 

[SHOdded]

Maybe they should lower the defect recognition threshold on the injectors used in boosted DI vehicles?

 

[Joleat]

I hate to revive an old thread, but I've been battling a P0020 code for the last couple of months. It's an on again-off again issue. I may drive with it on for 50 miles and then with it off for 300 miles. I initially read this thread when it first occurred and thought my issue could also be a loose pin, but the connector on the VCT solenoid side appears to be fine. There are only two wires and neither of them are loose. Today, I finally became frustrated enough to give it another look. I read the code with my X4 and now it's throwing a P0020 and a P0022. The car idles perfectly and doesn't experience any drivability issues, but I'd like to resolve this.

Does anyone have a wiring diagram of the bank 2 circuit? I hope this doesn't come to actually replacing the solenoid. At a glance, it looks like that will require removal of the valve cover.

 

[Scott4957]

I hate to revive an old thread, but I've been battling a P0020 code for the last couple of months. It's an on again-off again issue. I may drive with it on for 50 miles and then with it off for 300 miles. I initially read this thread when it first occurred and thought my issue could also be a loose pin, but the connector on the VCT solenoid side appears to be fine. There are only two wires and neither of them are loose. Today, I finally became frustrated enough to give it another look. I read the code with my X4 and now it's throwing a P0020 and a P0022. The car idles perfectly and doesn't experience any drivability issues, but I'd like to resolve this.

Does anyone have a wiring diagram of the bank 2 circuit? I hope this doesn't come to actually replacing the solenoid. At a glance, it looks like that will require removal of the valve cover.

It looks like the OP's problem ended up being a couple FI's. Not sure why it throws that code but its something to look at.

 

[Joleat]

Thanks Scott. I accidentally posted in the wrong P0020 thread. That's what I get for reading on my phone. There is another thread floating around here that details a wire chaffing issue that occurs near the battery box/radiator hose and the result is a P0020 code. While I haven't ruled out any causes at this point, the chaffed wire does make sense since I replaced my battery in late Summer. I think I just need to start removing parts to see what I can find. This is a bummer...

 

[ZSHO]

Joeleat think the sensor is located near the upper radiator hose,here's the thread,hope this helps any.  Z        http://www.ecoboostperformanceforum.com/index.php/topic,5280.0.html

 

[FoMoCoSHO]

Mine ended up being the pigtail.

If you have Torque, fire up vct commanded, actual, vct error.

When it happens you will see actual stop responding and vct error will match commanded.

They made a change from cable loom to a piece of tape on top of the pigtail for strain relief. Whoever assembled it didn't understand what strain relief meant so instead of a loop, they pulled it excessively tight through the tape and ruined the pigtail.

 

[ZSHO]

FoMoCoSHO is correct,new pigtail/terminal.  Z

 

[Joleat]

Thanks guys! I appreciate the insight. We're expecting a lot of rain tomorrow, but I should be able to dig into it later this week. I'll report back with what I find.