Vonlam43 Posted August 11, 2012 Share Posted August 11, 2012 Ok so to start I have a 77 280z 2+2 non california model. The issue I'm having is it is only running on I do believe 4 or 5 cylinders it runs very rough backfires A LOT. I had a procomp ignition in it(very similar to msd 6al). The Ignition failed and the car would not run. So I went back to the way I had it set up before which was a zx distributor swap it now runs but very poorly. If I pull injector clip 2 and 4 there is no change in the way it runs. If I pull the those plugs out I have spark at them but they are soaked with gas.I did an ecu pin test and I dont have 12v at pin #32 which is injector 3. I'm stumped if anyone can help it would be much appreciated because I'm lost do I need to wire up the stock ignition? Please help! Quote Link to comment Share on other sites More sharing options...
280Zhunter Posted October 17, 2012 Share Posted October 17, 2012 Ok so to start I have a 77 280z 2+2 non california model. The issue I'm having is it is only running on I do believe 4 or 5 cylinders it runs very rough backfires A LOT. I had a procomp ignition in it(very similar to msd 6al). The Ignition failed and the car would not run. So I went back to the way I had it set up before which was a zx distributor swap it now runs but very poorly. If I pull injector clip 2 and 4 there is no change in the way it runs. If I pull the those plugs out I have spark at them but they are soaked with gas.I did an ecu pin test and I dont have 12v at pin #32 which is injector 3. I'm stumped if anyone can help it would be much appreciated because I'm lost do I need to wire up the stock ignition? Please help! If you're getting spark at ALL the plugs I would say you have an injector problem. They could be leaking for several reasons and the spark plug firing the residue which would cause a rough idle. GOOD LUCK! Quote Link to comment Share on other sites More sharing options...
Domzs Posted October 17, 2012 Share Posted October 17, 2012 Check your plug wires , you might have them crossed ( 2 and 4 ) . Quote Link to comment Share on other sites More sharing options...
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