Ok. Looking for some help here.
I've got a persistent misfire, P0302 that happens under heavy load. If I ease into the throttle the car accelerates fine but if I plant my foot I get a flashing check engine light and misfires and can't get through the rev range. What I've done to try to correct it. Changed the injectors (new RS4 injectors), changed the coil packs (spares I had in the garage), changed the spark plugs (spares I had, NGK-7RE). Looked at wires where I could and see none broken anywhere.
Additional things done since it was last running and pulling hard: went to 4 port injection (water/meth), 175 bar PRV install, Golf R intake cam install, TFSI cam roller conversion. I don't feel like any of those should be causing misfires, checked timing through VCDS and it looked good. Only code I'm getting is P0302.
Let me know your thoughts. I don't know where to go from here.
Edgar
I've got a persistent misfire, P0302 that happens under heavy load. If I ease into the throttle the car accelerates fine but if I plant my foot I get a flashing check engine light and misfires and can't get through the rev range. What I've done to try to correct it. Changed the injectors (new RS4 injectors), changed the coil packs (spares I had in the garage), changed the spark plugs (spares I had, NGK-7RE). Looked at wires where I could and see none broken anywhere.
Additional things done since it was last running and pulling hard: went to 4 port injection (water/meth), 175 bar PRV install, Golf R intake cam install, TFSI cam roller conversion. I don't feel like any of those should be causing misfires, checked timing through VCDS and it looked good. Only code I'm getting is P0302.
Let me know your thoughts. I don't know where to go from here.
Edgar