Citroen C5 - Cylinder 2 Misfire Detected

[zeeshanzaki]

I have Citroen C5 2001 V6 and it is showing Catalyst Converter Fault and Anti Pollution error. Connected the generic OBD2 scanner it detected Cylinder 1 mishfire. So to confirm if just the coil or spark plug, I swapped the coil with cylinder 2 and then it detected same error in cylinder 2. so it is confirmed that coil is faulty. So I ordered new from Ebay and replaced.Cleared all the ECU errors and car drew normal for about 20km and then error comes up again. So pulled the car to side and checked the code again and now it is showing two more errors. It also leaks from rocker cover.

P0302 - Powertrain Cylinder 2 misfire detected
P0204 - Powertrain - Injector Circuit Cylinder 4
P0202 - Powertrain - Injector Circuit Cylinder 2

While removing coil connector I break its locking mechanism, so glued it to fix.
Just before this error, I filled the fuel full tank and top up LDS fluid.

Is it possible that the new coil is not compatible and causing other issues or is there something else causing this issue.

[zeeshanzaki]

Now there more errors and can't drive.
Injector circuit Cylinder 2 3 & 4
P0300 random/multiple misfire detected

[zeeshanzaki]

Replaced the generic coil with genuine second hand.
Now there is no error related to misfire, but as soon as I start the car it display anti pollution fault. Now it shows
P0343 camshaft position sensor A circuit high input (bank 1 or single sensor)
P0202
P0204
What could be the problem. Does it mean the faulty coil caused more damage.
Is it safe to drive home to do further diagnostic .

[zeeshanzaki]

Car driven to home with minor issue.
Now the error code is P0336 camshaft position sensor A circuit range/performance.

[zeeshanzaki]

Second coil also blown. Car runs for 20km after replacing coil and started giving Antipollution and catalytic converter failure.
Can someone tell what could be the problem?
fault codes:
P0202 Powertrain - Injector Circuit - Cylinder 2
P0302 Powertrain - Cylinder 2 Misfire detected.

[zeeshanzaki]

I found the problem. The large connector on rocker cover is faulty which connects to all fuel injector. I was managed to start the car in one position without any issue but as soon as I touched it it stops the engine. Is there anyway to fix this without replacing whole cabling.
Also found when esp/asr not functioning message appears, I can’t start the car unless I reset bsi few times.

[zeeshanzaki]

Fixed faulty connector. All errors gone.