Okay so I have a PNP megasquirt unit that lex built. I have not messed with the tuning yet other than scaling the injectors for 460cc. Here are the issues I am experiencing:
1. At idle according to my wideband the car is running super lean at 21. However the car starts fine so I don't know if it is reading wrong. If I rev the car up to say 7000 rpms, I can watch a steady curve on my display as the a/f richens up to about 12.5. So my wideband appears to be working, but should the car be able to run if it was really a 21 a/f rate at start up and idle? I do notice some noise on the rpm signal where you see spikes on the graph up to like 22000 rpms but I think its just noice or a loose connection because I haven't soldered any of the widebands wires yet.
2. I checked my spark plugs and 1/4 are turning black and wet, but 2/3 are really clean. I am going to check my distributor tonight to make sure I have the right firing order set up. Could this have anything to do with my car saying its lean at idle?
Logan
1. At idle according to my wideband the car is running super lean at 21. However the car starts fine so I don't know if it is reading wrong. If I rev the car up to say 7000 rpms, I can watch a steady curve on my display as the a/f richens up to about 12.5. So my wideband appears to be working, but should the car be able to run if it was really a 21 a/f rate at start up and idle? I do notice some noise on the rpm signal where you see spikes on the graph up to like 22000 rpms but I think its just noice or a loose connection because I haven't soldered any of the widebands wires yet.
2. I checked my spark plugs and 1/4 are turning black and wet, but 2/3 are really clean. I am going to check my distributor tonight to make sure I have the right firing order set up. Could this have anything to do with my car saying its lean at idle?
Logan
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