I have had this issue on and off since fitting a dual cone air intake system to suit the wing/deck lid I have fitted. Prior to my engine being rebuilt by Hartech the problem seemed to have settled down except for being a little fluffy around 2000 rpm, and the power curve being a little peaky. I know that I need a remap but prior to the engine rebuild was not a good time and now I need to run it in before I can get it to Wayne at chipwizards!
The engine has generally been running well since the rebuild (5 weeks), I had one instance about a week after collecting it where it began to run a little rough and misfire, the CEL came in briefly then disappeared and after 10 mins or so it was back to normal! Until Sunday it has been fine, then I had exactly the same issue except the CEL came on and stayed on.
I connected my cheap OBD Bluetooth/torque App. and got the following error codes:
P2180 System Too Rich Off Idle Bank 2
P0300 Random Multiple Cylinder Misfire Detected
P0306 Cylinder 6 Misfire Detected
P0304 Cylinder 4 Misfire Detected
I have cleared the error codes and driven it once, apart from seeming to be a little rough at first it was fine and no more CEL or error codes.
I am going to speak with Hartech as when I picked up the car Grant did mention I might see the odd CEL, I should have asked him why this might be, maybe just the ECU settling down after everything being disconnected!
Interesting that the cylinder misfires are on the two cylinders that were scored, can only imagine that this is a coincidence! I am fairly sure the issue is down to the air intake, combined with topgear exhaust and new headers, but I want to make sure everything else is ok before getting it re-mapped in the next month or so.
Will be checking for any air leaks in the air intake, MAF being contaminated etc! Wondering if there is a possibility of the Cats breaking down, any way to check this? Anything else I might check?
Thoughts and input appreciated!
The engine has generally been running well since the rebuild (5 weeks), I had one instance about a week after collecting it where it began to run a little rough and misfire, the CEL came in briefly then disappeared and after 10 mins or so it was back to normal! Until Sunday it has been fine, then I had exactly the same issue except the CEL came on and stayed on.
I connected my cheap OBD Bluetooth/torque App. and got the following error codes:
P2180 System Too Rich Off Idle Bank 2
P0300 Random Multiple Cylinder Misfire Detected
P0306 Cylinder 6 Misfire Detected
P0304 Cylinder 4 Misfire Detected
I have cleared the error codes and driven it once, apart from seeming to be a little rough at first it was fine and no more CEL or error codes.
I am going to speak with Hartech as when I picked up the car Grant did mention I might see the odd CEL, I should have asked him why this might be, maybe just the ECU settling down after everything being disconnected!
Interesting that the cylinder misfires are on the two cylinders that were scored, can only imagine that this is a coincidence! I am fairly sure the issue is down to the air intake, combined with topgear exhaust and new headers, but I want to make sure everything else is ok before getting it re-mapped in the next month or so.
Will be checking for any air leaks in the air intake, MAF being contaminated etc! Wondering if there is a possibility of the Cats breaking down, any way to check this? Anything else I might check?
Thoughts and input appreciated!