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Old 06-10-2019, 09:55 PM   #21
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My car does not have cruise control. That's what is confusing me. I cleared the code earlier and will drive it tomorrow to see if the code returns.
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Old 06-11-2019, 04:23 AM   #22
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Quote:
Originally Posted by dp155 View Post
So I was running diagnostics with my OBD II scanner earlier and I noticed the voltage on the Bank 1 oxygen sensor was fluctuating between .1 - .7 volts but the voltage on Bank 2 remained steady at .6 v. Is this normal? It just stood out to me because I would think the voltage on Bank 1 should be remaining steady like Bank 2 but I could be totally wrong.
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Originally Posted by zacautomotive View Post
Perfectly normal you want to see the oxygen sensor constantly fluctuating also known as switching.

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Originally Posted by amc49 View Post
X2, the closer the rear one gets to the action of the front the deader the converter is getting.
Quote:
Originally Posted by mac.mogul View Post
It's probably a faulty shift solenoid. Not unusual for this to trigger the same code.

Have you noticed any erratic behavior in the transmission when driving? Hard shifts? Slow shifts? Revs hanging or climbing before shifting into the next gear?


Edit: Also, at the very least, check ALL accessible fuses.
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My car does not have cruise control. That's what is confusing me. I cleared the code earlier and will drive it tomorrow to see if the code returns.
I have no idea. I do not know those codes, nor did I look up those codes.

Cheese and rice. Please do not look at OR consider any (scan tool) bank2 data or codes. The bank2 stuff is for other cars OR other engine types. Our Focus has only bank1.

Fuses? -no
Trans? -no
Other ideas? -yes.

I will guess your car has 12-hole RED colored (Bosch) fuel injectors? YES or NO?

That symptom sounds exactly like what I had. But maybe only if you have RED colored fuel injectors. It "drove" me crazy trying to figure out that exact problem & symptom. Those buggers (red injectors) do that... <<plus other symptoms too >>.

"foot barely on the gas pedal at a steady speed (usually 50-55mph), I feel an occasional "jerk"

I will guess your DTC (code/s) is another issue & completely separate from the "jerk" at 50-55 cruising speed issue.

Gd Luck

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If I have my foot barely on the gas pedal at a steady speed (usually 50-55mph), I feel an occasional "jerk". But when I take my foot off the gas, the jerking goes away. Anyone know where this problem could be originating from? Thanks.
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Old 06-12-2019, 01:46 PM   #23
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May not be your problem but my 2002 SOHC used to "buck"
very random and not very often but it ended up being my coil.
Didn't get any codes for a long time. finally got a misfire code.
Just my experience.
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Old 06-21-2019, 07:49 PM   #24
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Just a suggestion here but have you run all the wire harnesses and checked for wear?

Daughter drives a 2010 SE (Duratec) that I purchased Oct 2018. Late May 2019 she mentioned that the car "hiccuped" (her words). It was misfiring. It has gotten worse over the last two weeks and now stalls on her. She got a CEL but doesn't stay on when she restarts the car.

Did the following based on other posts:

-added gas dry
-changed coil pack
-changed EGR valve
-cleared/reset PCM
-changed cam position sensor

No changes with misfiring/stalling. Now getting CEL and wrench warning light then stalls.

Was getting really frustrated and was going to look at changing out the fuel pump or wiring harness based on other posts but took it to my mechanic before dumping more money into it with no fix.

It was hard to find but he said that the wire harness to the CPS was rubbing on a part and had worn through to the wires, breaking some, causing the issue. He's going to replace the harness and make sure that the area that caused the wear is 'fixed' so that it doesn't happen again.

It'll be tedious but free for you to do and hopefully it will be the solution to your problem. Good luck.
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Old 06-26-2019, 02:31 AM   #25
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I have not thoroughly checked my wiring harness for signs of wear but I'll definitely do that later today. Did your mechanic mention where he found the wear (specific spot under the hood)?
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Old 06-27-2019, 09:30 PM   #26
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My husband picked it up and I don't think that he asked. I will have her car back in to hve then replace her leaking CVjoint (I'm not looking to purchase the special tools to change it). I'll ask them about the harness wear point when I pick it back up.
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Old 07-02-2019, 05:58 PM   #27
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This is off topic but does anyone know where the cabin air filter is located on the '08 Focus SE? I've looked all around and can't seem to find it.
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Old 07-02-2019, 06:26 PM   #28
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This is off topic but does anyone know where the cabin air filter is located on the '08 Focus SE? I've looked all around and can't seem to find it.
Does not have one.

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Old 07-02-2019, 06:28 PM   #29
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Thanks for the quick reply. I had a feeling there wasn't one lol.
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Old 07-09-2019, 05:07 PM   #30
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So that 'P0581 - cruise control multi-function input A circuit high code' I was talking about a week or so ago is from the Ranger that we sold a couple years back and the scanner is VIN-locked to that vehicle (which had cruise control). I figured this out when the scanner gave me a "not the original vehicle or program" code and I'm reading that the only way to reset the scanner to stock is to go to the dealer (since we do not own the truck anymore). Anyone know if this is true and how much is this going to cost?
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