Codes P0223 and C1130, engine knocking noise while driving?

JESSICAB0628

MEMBER
2010 NISSAN MURANO
3.6L
V6
4WD
AUTOMATIC
197,000 MILES

My vehicle listed above was driving fine, a little loud but okay, then it started knocking really bad as I was getting off the highway, pulled over, went home by rt6 instead of highway in case I needed to stop. I got home fine, but it was sputtering every time I excelled the gas, and the knocking was still bad! I looked under the hood next day in light and the pendulum mount was busted so that was the knocking and although I thought initially fuel injectors. I tried changing spark plugs 1st, and put fuel injector cleaner in the gas tank, after plugs changed it ran a little better, but still hesitated when excelling, take your foot off the gas and go again and it was getting better. I figured I will change the fuel injectors anyway so it's faster. I did that and noticed an oil leak, so I changed the intake manifold gasket, valve cover gaskets, and the oil cooler gasket. I also changed the battery about a week before this happened. Get it all back together start it up, and although it's still loud it sounded better plugged the obd2 back in and got cylinder 2 misfire again, multiple cylinder misfire, throttle position sensor to high, and the c1130 code. I am now at a loss, I don't know what else to do at this point please help! I don't know it I may have not plugged something in correctly, or what, but as far as I can see now there are no leaks, and it all looks sealed properly, I'm beginning to think that loud noise under the hood may be more than just a hole in the exhaust.

4 Replies

BORIS K

MECHANIC
795 POSTS

Hello,

Fault code C1130 is usually a resultant code of an engine P-code.

C1130
When diagnosing for DTC C1130 (ENGINE SIGNAL): ECM related DTCs (P-codes)
must be diagnosed, repaired, and DTCs erased first.
DTC C1130 is an ABS DTC that indicates an output signal of the ECM is not
recognized.
Absent or incorrect ECM signals, which are indicated by corresponding P-codes, may
trigger C1130 in the ABS unit.
Some vehicle features that can be affected by absent or incorrect ECM signals are:
Forward Emergency Braking (FEB)
Intelligent Cruise Control (ICC)
VDC/ABS/TCS

A short video
https://youtu.be/XY2O6NMCI90

So, we need to first diagnose the misfire fault and TB fault P0223.

Misfires can be caused by bad compression, intake air leaks, low fuel pressure, bad spark plugs, bad ignition coils, bad injectors, low charge voltage to name but a few

As you have replaced the injectors, spark plugs and intake manifold gasket we can tick off a few items but the issue on cylinder 2 has not been solved.

A good video
https://youtu.be/e3YCZa2Ygpo

First, I would suggest to cross swap the ignition coil from a known good cylinder.
Start engine after swap and see if misfire moves to the other cylinder.

If the misfire is still on cylinder 2 next check for possible air leaks.
Ideally this is done using a smoke tester, but you can use a can of carburetor cleaner/easy start. Start the engine and carefully spray around the intake manifold, injectors and vacuum pipes. Listen if the engine running changes

A video:
https://youtu.be/xN5pcM-5bso
and
https://youtu.be/BQUWXYJojUY

If nothing has been found next I would suggest to carry out a compression test

How to:
https://youtu.be/J3j85hg0d-4

The above tests for the misfire should yield some results.

P0223

An excessively high voltage from the Throttle Position Sensor (TPS) 2 is sent to Engine Control Module (ECM).

Possible causes
Faulty Throttle position sensor
Throttle position sensor harness is open or shorted
Throttle position sensor poor electrical connection
Faulty accelerator pedal position sensor

I would suggest to first check the condition of the TB connector.
Check that there is no corrosion/widened pins in the connector
If in order next check the wiring back from the TB to the ECM.
See image 1+2

Pin out at the TB and ECM connector F8

Pin 1, green wire to ECM pin 47
Pin 2, white wire to ECM pin 37
Pin 3, red wire to ECM pin 38
Pin 4, black wire to ECM pin 36

Pin out acc pedal to ECM connector E16
Pin 1, green wire to ECM pin 100
Pin 2, black wire to ECM pin 84
Pin 3, white wire to ECM pin 81
Pin 4, brown wire to ECM pin 83
Pin 5, grey wire to ECM pin 87
Pin 6, orange wire to ECM pin 82

See image 3+4 below

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

How to use voltmeter:
https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please let us know if you need any other information.

Cheers, Boris

Images (Click to make bigger)