James1436215376 Posted May 9, 2008 Report Share Posted May 9, 2008 My engine is wired to run the injectors in sequential mode but it was tuned to run group, no real reason given by the tuner i.e. any issues with sequential vs group. The car will run in sequential with a noticable difference in power delivery on my but dyno. However there is issues with acceleration under medium to high load, there is a miss present at around 1500rpm. Also after the car is at operating temp I will come to a stop at the lights or whatever and the revs will stumble and drop to below 500 and if I dont take action the car will stall. Is this just a factor of fine tuning the idle values for inj and spark as well or are there other fundamental tune differences between group and sequential. Cheers Quote Link to comment Share on other sites More sharing options...
Simon Posted May 11, 2008 Report Share Posted May 11, 2008 Im assuming this is a G1 Linkplus. On the G1 ecus there is little point in running sequential as the ECU crosses over to group fire at anything more than 30% duty cycle (light load, unless very big injectors) So any thing high power it will be running group mode anyway. For the stalling at lights more adjustment of the idle hot value and maybe the overrun vacuume target. Simon Quote Link to comment Share on other sites More sharing options...
James1436215376 Posted May 12, 2008 Author Report Share Posted May 12, 2008 Thanks Simon, is there more value in running sequential with a G3 LinkPlus? Quote Link to comment Share on other sites More sharing options...
Simon Posted May 19, 2008 Report Share Posted May 19, 2008 Much more. In the G3's you can set up where you want the injectors firing and they stay sequential all the way through. Quote Link to comment Share on other sites More sharing options...
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