Guest |508| Posted May 25, 2010 Report Share Posted May 25, 2010 I just finished wiring up vipec v44 into my car last night. The engine is a 408ci small block ford. I have a crank trigger with four pulses per engine rev and a custom oil plug/cam sync sensor with one pulse per two engine revs. I calibrated my base timing and the car started up fine. I ran if with no load for engine breakin purposes but the engine was stumbling at 2000rpm. My MAP says 25 degrees of advance at the cell I was holding it at but we put the timing light on and it was at my ignition limit of 40 degrees. I let the engine down to 1000 rpm where the timing is supposed to be 20 degrees and the timing light said 30 degrees. I am new to this ecu so I don't know where to start. I know there is an ignition delay box which is at zero right now because I was just do low rpm break in but is the what is causing this? I would believe an ignition delay would cause ignition retard as rpm climbs but why could my ignition be advancing so much? Quote Link to comment Share on other sites More sharing options...
Guest |508| Posted May 25, 2010 Report Share Posted May 25, 2010 I decided to recalibrate my triggers. I set my base timing to 15 degrees and got it set right at cranking speed. With the ignition locked on reference the timing light showed the timing increasing with rpm. I looked over all my setting and I believe my triggers are set properly. Any ideas? Quote Link to comment Share on other sites More sharing options...
rayhall Posted May 25, 2010 Report Share Posted May 25, 2010 1. What are you using for the ignition amplifer. 2. Which edge have you selected for the ignition trigger. Ray. Quote Link to comment Share on other sites More sharing options...
Guest |508| Posted May 25, 2010 Report Share Posted May 25, 2010 I have coil to plug. I am using the ls1 coil packs from msd. the trigger was on falling edge. I just tried putting to rising edge and recalibrating but when I had it locked to look at the 2000rpm it did the same thing. With it locked it jumped 15 degrees in 500 rpm. Quote Link to comment Share on other sites More sharing options...
rayhall Posted May 25, 2010 Report Share Posted May 25, 2010 Please email me your map. [email protected] Quote Link to comment Share on other sites More sharing options...
Guest |508| Posted June 3, 2010 Report Share Posted June 3, 2010 I have sent you a detailed email. Let me know what path forward you recommend. Thanks ray Quote Link to comment Share on other sites More sharing options...
rayhall Posted June 3, 2010 Report Share Posted June 3, 2010 Problem has been solved. The engine is 8 cylinders and sequential ignition was selected when using a V44, rather then the required wasted spark. Quote Link to comment Share on other sites More sharing options...
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