How am I running lean?
#11
06-22-2011, 05:07 PM
Guest
Posts: n/a
Maybe diagnosing the actual issue would be better? I think changing the plugs to get the desired results is something of a band-aid. The same plugs came out and looked good, these should also I would think. Something changed, so finding out what did, might be better. No?
At 35k, the only things I can think of would be vac leak or fuel pressure. You can verify the pressure from the shraeder valve on the rail. If the pressure is lower than spec, you are probably going to have to drop the tank to verify the filter on the pump is clean.
To find vac leaks, I have always done the old soapy water trick. Put some soapy water in a spray bottle and spray any vac line and look for bubbles with the trucks on. Also check the intake manifold for leaks.
I doubt your injectors are the issue, as every plug looks the same. I am also doubting its fuel pressure related. If you can verify the rail pressure and don't find any vac leaks, then I would say its something ignition signal related.
Good luck man. Personally, I wouldn't start throwing different plugs at it 'till I knew what was causing the discoloration.
At 35k, the only things I can think of would be vac leak or fuel pressure. You can verify the pressure from the shraeder valve on the rail. If the pressure is lower than spec, you are probably going to have to drop the tank to verify the filter on the pump is clean.
To find vac leaks, I have always done the old soapy water trick. Put some soapy water in a spray bottle and spray any vac line and look for bubbles with the trucks on. Also check the intake manifold for leaks.
I doubt your injectors are the issue, as every plug looks the same. I am also doubting its fuel pressure related. If you can verify the rail pressure and don't find any vac leaks, then I would say its something ignition signal related.
Good luck man. Personally, I wouldn't start throwing different plugs at it 'till I knew what was causing the discoloration.
#12
06-22-2011, 08:32 PM
Maybe diagnosing the actual issue would be better? I think changing the plugs to get the desired results is something of a band-aid. The same plugs came out and looked good, these should also I would think. Something changed, so finding out what did, might be better. No?
At 35k, the only things I can think of would be vac leak or fuel pressure. You can verify the pressure from the shraeder valve on the rail. If the pressure is lower than spec, you are probably going to have to drop the tank to verify the filter on the pump is clean.
To find vac leaks, I have always done the old soapy water trick. Put some soapy water in a spray bottle and spray any vac line and look for bubbles with the trucks on. Also check the intake manifold for leaks.
I doubt your injectors are the issue, as every plug looks the same. I am also doubting its fuel pressure related. If you can verify the rail pressure and don't find any vac leaks, then I would say its something ignition signal related.
Good luck man. Personally, I wouldn't start throwing different plugs at it 'till I knew what was causing the discoloration.
At 35k, the only things I can think of would be vac leak or fuel pressure. You can verify the pressure from the shraeder valve on the rail. If the pressure is lower than spec, you are probably going to have to drop the tank to verify the filter on the pump is clean.
To find vac leaks, I have always done the old soapy water trick. Put some soapy water in a spray bottle and spray any vac line and look for bubbles with the trucks on. Also check the intake manifold for leaks.
I doubt your injectors are the issue, as every plug looks the same. I am also doubting its fuel pressure related. If you can verify the rail pressure and don't find any vac leaks, then I would say its something ignition signal related.
Good luck man. Personally, I wouldn't start throwing different plugs at it 'till I knew what was causing the discoloration.
I wasn't going to change to a different plug. The stock champions, which is the stock plug is adequate. I only caught the problem by changing them to begin with.
#13
06-23-2011, 11:13 AM