Autosri wrote:
Yeah I have a cold air intake in the front bumper the pipe is pretty straight so wouldn't have thought it would disrupt the air flow but I'm open to all ideas so will have a blast at sticking the airbox back in
Did you find a way to retard the ignition timing on your m54 engine without full stand alone management
I'm trying to get some software that will read the ignition timing and knock sensors to even see if it is knock or something totally un related as I can't hear the metallic engine knock bu can't really think of much else that would cause it I don't suppose you know if inpa or any others software will show it
You are in a very dangerous frame of mind right now. Something is wrong, and you are trying to add even more power to the engine.
The first thing you need to do is get the fault codes read, and a read out of the LTFT and STFTs. If there is a spark or fuel issue, it should show up there.
I disagree with your use of water injection on an N/A engine. Usually we are trying to lower the grains of water in air, not increase it. If you had boost, this would be a different case, but even then I still don't agree with water injection. On my own car, I use pure methanol in it's own fuel cell. (HFS-6 system from Howerton Engineering)
Yes I do know of ways of controlling both the spark and fuel on the M54B30, but until you fix your other problem....there's just no point of making your engine control more complicated.
You may have a VANOS issue that's causing all the noise...very common on older M54s. Dr.Vanos has a kit to rebuild the control mechanism that is sometimes the cause of this rattling.
I wouldn't do any nitrous testing until you get the engine issue(s) resolved.
BTW, I could be completely wrong about the effects of your CAI, but that doesn't change the fact that you have an issue.
Okada makes some really good ignition coils for the M54.