Misfire & Stalling during cam break in
Posted: June 24th, 2024, 11:28 pm
Hello all,
As the title suggests while performing my cam break in on my 01 XJ, my motor seems to some problems. It has a significant misfire, the engine runs relatively smooth but the miss is obviously heard in the exhaust. Additionally, every 2 minutes or so, the engine will sputter and shut off.
No codes are present whatsoever. I have only performed about 10 minutes of break in and I don't want to continue until I get this figured out. That being said i'm in a tough situation since I cannot start the engine and idle it to test any repairs until I complete the cam break in.
Since there are so many possibilities that could cause a misfire, what would you all reccomend checking first? It almost seems like the engine is either running out of fuel or losing spark causing it to rapidly shut off. I am planning on verifying fuel pressure and double checking my positioning of the cam synchronizer first before I do anything else.
I am praying that I have not wiped a cam lobe, this is my 2nd time building this motor this year! The cam is a comp nitrided custom grind from Russ. Running copper champion plugs gapped at 0.035. I can post additional specs if needed.
Thanks in advance
As the title suggests while performing my cam break in on my 01 XJ, my motor seems to some problems. It has a significant misfire, the engine runs relatively smooth but the miss is obviously heard in the exhaust. Additionally, every 2 minutes or so, the engine will sputter and shut off.
No codes are present whatsoever. I have only performed about 10 minutes of break in and I don't want to continue until I get this figured out. That being said i'm in a tough situation since I cannot start the engine and idle it to test any repairs until I complete the cam break in.
Since there are so many possibilities that could cause a misfire, what would you all reccomend checking first? It almost seems like the engine is either running out of fuel or losing spark causing it to rapidly shut off. I am planning on verifying fuel pressure and double checking my positioning of the cam synchronizer first before I do anything else.
I am praying that I have not wiped a cam lobe, this is my 2nd time building this motor this year! The cam is a comp nitrided custom grind from Russ. Running copper champion plugs gapped at 0.035. I can post additional specs if needed.
Thanks in advance