running much too rich

[maybemark]

I have an 82 280zxt, with megasquirt 1 v3 that I built and installed. I have a palnet rail, with 446 cc injectors. I also have a 60 mm throttle body. At the moment, I have a stock coil. I am using a 1 wire O2 sensor. The car starts fine, but seems to be dumpoing too much fuel in the chambers that the plugs aren't firing. I have leaned out the map all the way, until the engine runs very poor, but still, when I check out the spark plugs, they are wet and carbon on them. I already changed the coil, replaced the distibutor cap and rotor, like I said, leaned out the map, tried playing with the dwell, but afraid to go over 4. I read someplace that could be dangerous to the megasquirt. I am baffeled on why so much gas isn't being burned.

Does anyone have a suggestion?

I would appreciate.

 

 

thanks

 

Mark

[kvansic162]

I have a rich problem too. Iv'e tried everything.....accel bins,leaning maps,..ect...I florr the gas and it misses rich and whole bunch of james bond black smoke comes out....even at idle...hit the gas and rich city. I'm in the same boat as you. I wonder if my MS1 v3.0 is damaged.

[maybemark]

I had bought new NGK spark plug wires for the 280zx. I decided to put the old witres back on, and now, I pulled the spark plugs after a run, they are not drenched with gas, and burning to a tan, rather than wet carbon that i was getting.

I am using brand new bosch super plus wr70c.

well, that's what they look like to my old eyes .Does anyone have a suggestion for a spark plug on a 280zxt hoping to run 15lbs of boost?

thanks

 

Mark

[Forrest]

http://forums.hybridz.org/showthread.php?t=120638&highlight=plugs+turbo