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Engine misfire Code P2195

Tiny
CRJMECH00
  • MEMBER
  • 2005 FORD ESCAPE
  • AUTOMATIC
  • 100,000 MILES
I have the vehicle listed above with 3.0L 2wd. Did a block swap (spun bearing). I have bank 1 sensor 1 o2 code. P2195 I think. Swapped b1s1 with Bank 2 sensor 1, problem did not follow. Going to check wiring continuity from plug to ECU.

Any other suggestions?

Shawn.
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Friday, November 16th, 2018 AT 12:36 PM

36 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Yep, you are going in the right direction. Let me know how the pin out test goes.
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Friday, November 16th, 2018 AT 12:37 PM
Tiny
CRJMECH00
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Ken, I check O2 connector wiring (colors on 2005 are different), wiring has continuity. Changed IAC, no joy, check operation of EGR, no joy. Changed injectors (flagging bank 1 lean), no joy, fuel pressure 40psi. Sprayed intake with carburetor cleaner, no change. Pinched off vacuum lines, no joy.
Engine runs fine for three to five minutes, then bogs down, runs rough, exhaust smells very rich, will eventually stall. No MIL, just stored code p2195 (and P1000, test drive).

Any help would be greatly appreciated.

Shawn.
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Friday, November 16th, 2018 AT 12:38 PM
Tiny
KEN L
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It sounds like the exhaust can be plugged causing the issue. Lets run down this guide to see what is going on.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please let us know what happens.
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Friday, November 16th, 2018 AT 12:39 PM
Tiny
CRJMECH00
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I will try this tomorrow. It will be challenging because previous owner had flanged joint from "Y" pipe to catalytic converter pipe welded with a flex joint. Would be acceptable to break both connections at manifold to Y pipe?

Also, This was not an issue prior to engine spinning a bearing. How could this be affected?

Update: So I disconnected exhaust manifolds from 'Y' pipe, still same P2195 code, running same. I read somewhere here on 2carpros. Com about MAF sensor being disconnected and car ran fine. This was also the case with mine. I will go tomorrow to local salvage yard and pick one up. Current one installed is probably aftermarket. No recognizable Ford part number or logo.

Curious why it only effected bank 1 and not Bank 2? Huh.

Will update tomorrow.

Shawn
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Friday, November 16th, 2018 AT 12:39 PM
Tiny
KEN L
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The running bad will cause that code. Let's make sure the engine has good compression. Please follow this guide:

https://www.2carpros.com/articles/how-to-test-engine-compression

Please run down this guide and report back.
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Friday, November 16th, 2018 AT 12:40 PM
Tiny
CRJMECH00
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  • 11 POSTS
Ken,

First MAF sensor did not fix issue. Surprise. I did do compression check. Results: #1-170, #2-165, #3-170, #4-180, #5-210, #6-205. Also, plugs #1-#3 are black and sooty. I suspect manifold/pre-catalytic converter restricted.

Shawn.
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Friday, November 16th, 2018 AT 12:40 PM
Tiny
KEN L
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Good find on the plugs, it sounds like you have two bad injectors on #1 and 3. Here are guides to help us confirm the issue:

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

and

https://www.2carpros.com/articles/how-to-replace-a-fuel-injector

Please run down these guides and report back.
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Friday, November 16th, 2018 AT 12:40 PM
Tiny
CRJMECH00
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I replaced all six injectors on Wednesday. Unless they are just fouled. I could clean and retry.
Also, it is plugs 1, 2 and 3.

Shawn
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Friday, November 16th, 2018 AT 12:40 PM
Tiny
KEN L
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Please install new plugs, cleaning does not always work.
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Friday, November 16th, 2018 AT 12:42 PM
Tiny
CRJMECH00
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New plugs installed. Everything back together. Same code P2195.
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Friday, November 16th, 2018 AT 12:42 PM
Tiny
KEN L
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How does it seem to run? Can you please shoot a quick video with your phone so we can hear the noise, that would be great? You can upload it here with your response. If it runs okay lets try replacing the primary O2 sensors. Here is s guide:

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor
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Friday, November 16th, 2018 AT 12:42 PM
Tiny
CRJMECH00
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Engine has a rough idle, until you increase throttle, then it smooths out. I have swapped o2 sensors front to back and problem did not follow. Really feel it has a vacuum leak. Carburetor cleaner proved to not be able to locate leak. So I am going to employ an old trick. Blowing cigar smoke into intake manifold (engine off of course) and look for smoke.

Found Smoke leaking from vent holes underneath EGR diaphragm. Replace EGR. Same P2195. Same running rough at idle (Vacuum leak If I could guess). Swapped O2 sensors front to back again, Problem did not follow.

Shawn.
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Friday, November 16th, 2018 AT 12:43 PM
Tiny
KEN L
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It is lean because of the misfire. The black sooty plugs are giving us the clue. Sure sounds like an injector is bad or you may have a blown head gasket between 1 and 3 both 170 seems high for that though. Are any of the other plugs black?
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Friday, November 16th, 2018 AT 12:43 PM
Tiny
CRJMECH00
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I had changed all injectors. New head gaskets and bolts. Think I will get another can of carburetor cleaner and try that.
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Friday, November 16th, 2018 AT 12:44 PM
Tiny
KEN L
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It could be a flat camshaft or broken valve spring let's remove the valve cover on that side to inspect.
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Friday, November 16th, 2018 AT 12:44 PM
Tiny
CRJMECH00
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Valve spring are intact, cam lobes are fine. Reused original cylinder heads. Engine ran smooth except for spun bearing.
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Saturday, November 17th, 2018 AT 3:28 AM
Tiny
KEN L
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It sounds like it could be fuel pressure issue causing the injectors to not work right. Test the pump to confirm.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Fuel Pressure
Key on, engine off .................... 269 kPa (39 psi)
Engine running .................... 269 kPa (39 psi)
Fuel pump output volume per 10 seconds .................... 125 cc (4.32 oz.)

Check out the diagrams (below). Please let us know what happens.
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Saturday, November 17th, 2018 AT 9:45 AM
Tiny
CRJMECH00
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I checked that before. Fuel pressure is 39PSI. Engine will not rev past about 4,000 rpm's. Was wondering fuel injector wiring is bad? I changed all injectors. Maybe one on bank 1 is not firing or poor ground?
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Saturday, November 17th, 2018 AT 6:28 PM
Tiny
CRJMECH00
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Ken, Do you have ECM pinout for 2005?

Shawn.
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Saturday, November 17th, 2018 AT 6:52 PM
Tiny
KEN L
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Yes, here are the engine wiring diagrams and a guide to help to test the wiring:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what you find.

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Monday, November 19th, 2018 AT 11:27 AM

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