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Title: Can not seem to force open loop on mk4 1.8t for tuning Post by: needlessthing on January 17, 2016, 10:29:24 AM I know most here don't use maestro 7 tuning software..but thought maybe someone here can help me out with my problem.
car is 2003 jetta 1.8t awp I can't seem to force the car to stay in open loop so I can data log without o2 corrections. I can evap deleted...and unplugging the resister for the n80 doesn't make the car go into open loop in measuring block 99 going to measuring block 99 and switching to basic settings does force open loop...but once I try to data log or switch blocks for other variables it goes right back into close loop again. Is there any other way to force a constant open loop? without unplugging the o2 censor? I need the data the o2 is seeing...but not for the ecu to correct based off what it sees. someone please help...trying to dial in my tune and this is brick wall... Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: vwaudiguy on January 17, 2016, 10:37:45 AM Why can't you tune based off the short term fuel corrections, assuming your req AFR is set? One of the great things about ME7 is it's always closed loop. You could also use an external wideband, but the ecu has one already.
Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: nyet on January 17, 2016, 11:06:07 AM I agree 100%. Wideband ME7 is great.
Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: needlessthing on January 17, 2016, 12:27:01 PM Why can't you tune based off the short term fuel corrections, assuming your req AFR is set? One of the great things about ME7 is it's always closed loop. You could also use an external wideband, but the ecu has one already. from what I understand you need to log data without o2 input when tuning for maps like alpha N... Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: vwaudiguy on January 17, 2016, 01:03:43 PM Maffless?
Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: overspeed on January 17, 2016, 04:36:18 PM Unplug n112, wideband will show actual and req lambda factors but not correct the injection time
Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: dream3R on January 17, 2016, 07:57:56 PM It's doable if you look at the code on the function it full of code words iirc.
Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: needlessthing on January 17, 2016, 11:57:38 PM Maffless? no I am not maffless....but I do have cams, larger intake manifold with larger ports, and port and polished head...with a 70mm throttle body... I need to dial in the alpha n map...which from what everyone says must be done while in open loop. Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: needlessthing on January 18, 2016, 12:03:19 AM Unplug n112, wideband will show actual and req lambda factors but not correct the injection time most of that is all deleted and resistered....removing the resisters doesn't seem to force it to go into open loop...unless maestro software is causing it to ignore those removed valves and keep it in closed loop constantly. As stated...going into to measuring block 99 and switching to basic settings forces it to open loop. A/F goes to 13.5 at idle so I know it is not getting o2 corrections....but as soon as I switch blocks to log data it goes right back to closed loop and a/f jump back to 14.7 Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: catbed on January 18, 2016, 10:44:01 AM no I am not maffless....but I do have cams, larger intake manifold with larger ports, and port and polished head...with a 70mm throttle body... I need to dial in the alpha n map...which from what everyone says must be done while in open loop. Why open loop? Alpha-N is airflow over throttle plate. You need to log throttle angle, RPM, and MAF reading Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: nyet on January 18, 2016, 10:52:58 AM Open loop only makes sense with a MAF or a real MAP (post TB).
Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: vwaudiguy on January 18, 2016, 11:46:34 AM most of that is all deleted and resistered....removing the resisters doesn't seem to force it to go into open loop...unless maestro software is causing it to ignore those removed valves and keep it in closed loop constantly. As stated...going into to measuring block 99 and switching to basic settings forces it to open loop. A/F goes to 13.5 at idle so I know it is not getting o2 corrections....but as soon as I switch blocks to log data it goes right back to closed loop and a/f jump back to 14.7 Maestro has a window that gives you the option to delete singular sensors/relays. You need to re-enable them, and then remove the resistors. Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: dream3R on January 19, 2016, 01:08:50 AM Maestro has a window that gives you the option to delete singular sensors/relays. You need to re-enable them, and then remove the resistors. Not to offend but that product is it any good? Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: ddillenger on January 19, 2016, 02:27:24 AM Not to offend but that product is it any good? NOLRA will disable adaptations. Same effect as tripping powerstage diagnosis. Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: vwaudiguy on January 19, 2016, 09:43:48 AM Not to offend but that product is it any good? Maestro is horrible IMHO. Title: Re: Can not seem to force open loop on mk4 1.8t for tuning Post by: overspeed on January 19, 2016, 10:27:04 AM Maestro is horrible IMHO. Where do I sign ? ;D |