I was test the incomplete ring (D2B problem, solved by reconnected one of the plug) , so I started the car for idle about 30 sec. and then shut it off.
But after few seconds I start engine again, the problem showed up.From SDD I got:
P0301
P0303
P0305
P0307
P0300
P0302
P0304
P0306
P0308
P1316
P1313
About the misfire 2 4 6 8, it cames up sometimes after I cleared the codes but the misfire 1 3 5 7 was flagged all the time.
So I replaced coils 1 3 5 7 and fuel rail pressure sensor. The ECU connector is fine. The spark plugs were replaced around 3 months ago.
Now the problem still there, any ideas? Does it possible bad MAF or PCV?


Everytime I load the codes after the problem come up, the misfire 1 3 5 7 always flagged but the 2 4 6 8 are not.

 

Sounds like a crankshaft sensor or camshaft sensor (on bad bank) is off. But I would swap MAF sensors between banks and see if the problem moves to the other side of the engine

 

Thanks for the reply but do you mean Mess Air Flow ? I believe I have only one on my car, so I have no ideas how to swap it between banks.
But I will check the camshaft position sensors, replace it directly.

 

Today, the problem still exists after replacing the crank position sensor and camshaft position sensor.
So I pulled out the cylinder 1 3 5 7 coils and spark plugs to see if they works normal or not, but they're fine.
Therefore, I think its about the fuel problem, maybe something makes my whole bank 1 cylinders no fuel comes in since it keep misfiring.
Is it possible fuel pump module or REM caused the problem? I did check the datalogger to find out my fuel flow is showing me 600ml/min but suddenly it would be 0ml/min randomly.
However, I dont have another normal working supercharged X350 to compared, thats why I dont know what is the normal fuel flow looks like.
My Jag is a 2004 XJR with 138910KM by the way.

 

Always show all DTC's including not related. Related ones only refer to the symptoms you think you have and entered for it to check.

 

Today I removed the catalyst converters and both side runs well, so I guess it’s the clogged catalyst on bank1 caused the problem.
And catalyst converter on bank 2 should be badly as well, therefore, it caused random misfire sometimes.
I will go to a shop to see if fix it or do refurbishment.

 

I'm sure you did, but just in case you had forgotten, did you check the spark plug gaps before installing those new spark plugs? Also, were those the correct spark plugs?

 

Hello,

I have been experiencing a similar problem for some months.

I had the diagnostic system scanned, Most recently, 11th April 2023, and the following codes were produced; P0193-00 'Fuel Rail Sensor high input - No subtype information'. The fuel rail sensor was replaced 26th January 2023.

P0301-00 ' Cylinder 1 misfire detected - No Subtype Information'. The coil for this cylinder was replaced 8th November 2022.

P0303-00 'Cylinder 3 misfire detected - No Subtype Information'. The coil for this cylinder was replaced 26h January 2023.

P0305-00 'Cylinder 5 misfire detected - No Subtype Information'.

P0306-00 'Cylinder 6 misfire detected - No Subtype Information'.

P0300-00 'Random misfire detected - No Subtype information'.

P0316-00 'Misfire detected on start up (first 1000 revolutions') - No Subtype Information'.

All the coils were replaced about three years ago.

When I first had the problem of the engine not running properly, I took the car to a shop and they opined that the cause may be a catalytic converter. I had the converter replaced on Band A /right bank and the problem persisted.

At one time, the engine was running so poorly, that it was difficult to get it up to speed. If memory serves, this prior to the coil replacement in January.

Otherwise, the power is sufficient and what I perceive, only, is at low rpm the engine makes a rumbling sound.

There seems to be some commonality with this issue and other participants in the thread. However, it isn't clear that anyone has been able to resolve the issue.

Any suggestions or insights into the cause of this problem and its resolution would be much appreciated.

 

Hello,

I have been experiencing a similar problem for some months.

I had the diagnostic system scanned, 11th April 2023, and the following codes were produced; P0193-00 'Fuel Rail Sensor high input - No subtype information'. The fueil rail sessor was replaced 26th January 2023.

P0301-00 ' Cylinder 1 misfire detected - No Subtype Information'. The coil for this cylinder was replaced 8th November 2022.

P0303-00 'Cylinder 3 misfire detected - No Subtype Information'. The coil for this cylinder was replaced 26h January 2023.

P0305-00 'Cylinder 5 misfire detected - No Subtype Information'.

P0306-00 'Cylinder 6 misfire detected - No Subtype Information'.

P0300-00 'Random misfire detected - No Subtype information'.

P0316-00 'Misfire detected on start up (first 1000 revolutions') - No Subtype Information'.

All the coils were replaced about three years ago.

When I first had the problem of the engine not running properly, I took the car to a shop and they opined that the cause may be a catalytic converter. I had the convert replaced on Band A /right bank and the problem persisted.

At one time, the engine was running so poorly, that it was difficult to get it up to speed.

Otherwise, the power is sufficient and what I perceive, only, is at low rpm the engine makes a rumbling sound.

There seems to be some commonality with this issue and other participants in the thread. However, it isn't clear that anyone has been able to resolve the issue.

Any suggestions or insights into the cause of this problem and its resolution would be much appreciated.

 

Looks like yours isn't the same - e.g. you have P0193.

I think that's the thing I'd chase first, but I REALLY hope the new coils were OEM quality because bad coils are a nightmare.

 

you put a bad FRP sensor in and it completely destroys the fuel delivery

it has to be from the ford or jlr dealer no exceptions

 

Hello,

Thanks for the replies.

I have had only OEM parts installed.

The engine operation has not changed since the the new fuel rail sensor was installed. It didn't make any difference. The engine is neither worse nor better. At tow rpm, eg at idle, the engine sounds like it's stumbling. At a higher rpm the sound is gone. Which has been the case for some months.

I'll look into further diagnostic on the FRS.

J

 

Use live data to watch fuel pressure (and if there's a physical valve, connect to it).

You may also want to check the wiring etc.

 

Update

The engine is now running well.

One of the coils that had been recently replaced proved defective. Another had fouled. Both were replaced.

Also, some engine wiring, which wasn't specified, was reported to have been repaired,