DCVNXR Member 28 Member For: 16y 3m 2d Gender: Male Posted 18/10/09 03:23 AM Share Posted 18/10/09 03:23 AM Hi everyone, just thrown in some siemens deka 60s and am having abit of trouble controling the fuel constantly going rich lean rich lean, afr going from 13 to 15.1 at idle.Ive had abit of a search on this site but not much on the actual tuning side of things, im using HPT format and have the specs from the ford racing site.Any ideas on what ive stuffed up ? what settings are people running? or would anyone be willing to let me read there car in the se suburbs of melb ?Any help would be great. Link to comment Share on other sites More sharing options...
freeze_dk I am dissatisfied with my current employment situation Donating Members 8,610 Member For: 18y 3m 7d Gender: Male Posted 18/10/09 03:58 AM Share Posted 18/10/09 03:58 AM wouldnt you need a custom tune because they are higher flowing injectors.. hence causing it to get rich? Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 7m 8d Gender: Male Location: @ my laptop Posted 18/10/09 06:21 AM Share Posted 18/10/09 06:21 AM Hi everyone, just thrown in some siemens deka 60s and am having abit of trouble controling the fuel constantly going rich lean rich lean, afr going from 13 to 15.1 at idle.Ive had abit of a search on this site but not much on the actual tuning side of things, im using HPT format and have the specs from the ford racing site.Any ideas on what ive stuffed up ? what settings are people running? or would anyone be willing to let me read there car in the se suburbs of melb ?Any help would be great.the specs on that site do not work correctly, even when modified to match our cars, several of us have tried them in the past and although the idle appeared ok with no test equipment, testing them would find the changes you mentioned. Link to comment Share on other sites More sharing options...
Ozzy Member 40 Member For: 15y 3m 16d Gender: Male Posted 18/10/09 06:21 AM Share Posted 18/10/09 06:21 AM Sounds to me like your ECU is in a closed loop and the mixture is are cycling to satisfy both sections in the cat.We have CNG buses at work and when they are in closed loop, the O2 output voltage cycles from 40mV to 929mV when everything is right. 450mV is stoichiometric. Link to comment Share on other sites More sharing options...
DCVNXR Member 28 Member For: 16y 3m 2d Gender: Male Posted 18/10/09 11:49 AM Author Share Posted 18/10/09 11:49 AM ok thanks ratter that's good to hear that its not just me Link to comment Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 5m 27d Gender: Male Location: OZ Posted 19/10/09 03:10 AM Share Posted 19/10/09 03:10 AM Try either of these, it will get you rolling. Just leave losed loop learning on and the O2 feedback will clean up the slops.Break Point 0.0000168High Slope 0.0197Low Slope 0.0288Min PW 0.00036Battery Offset FactoryBreak Point 0.0000168High Slope 0.019Low Slope 0.031Min PW 0.0003Battery Offset FactoryJust be careful with your base fuel table....don't go nuts if you're not watching a wideband. Link to comment Share on other sites More sharing options...
Ozzy Member 40 Member For: 15y 3m 16d Gender: Male Posted 19/10/09 10:16 AM Share Posted 19/10/09 10:16 AM Great post IH8TOADS! Link to comment Share on other sites More sharing options...
DCVNXR Member 28 Member For: 16y 3m 2d Gender: Male Posted 07/02/10 03:54 AM Author Share Posted 07/02/10 03:54 AM thanks for your help ppl got the problem sorted awile ago Link to comment Share on other sites More sharing options...
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