Lockjaw Posted July 23, 2002 Share Posted July 23, 2002 I know what you are talking about. The stock Zx fuel injection has a switch over point where the injectors go from about 40 percent duty cycle to 85 percent or whatever it goes to. Once it switches, it pulls really good. Make sure you clean the connections at the ECU very well, and then you need to start doing some tweeking with the AFM, timing, etc to make it better. Maybe raise your fuel pressure a little bit. Quote Link to comment Share on other sites More sharing options...
DAT240Z Posted July 23, 2002 Author Share Posted July 23, 2002 I notice that the car pull good to 3-3500 rpm, than it seams like it running lean not much power than around 4krpms it take off and pulls all the way to the red line, when does boost kicks, somehow I was thinking around 3k is when it should kick in. I just clean all my connectors. is there to check and see if i'm running lean around 3-4k rpm. Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted July 23, 2002 Share Posted July 23, 2002 What ECU/airflow system are you running? Is the engine/fuel system/turbo stock? Are you running stock boost levels? Any more information about what you are running will help - any changes you may have made could be important. Do you have good gauges, such as a boost gauge and an air/fuel mixture gauge? These can be invaluable towards diagnosing EFI and turbo issues. Quote Link to comment Share on other sites More sharing options...
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