DIYPNP Won't Stay Running
#1
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DIYPNP Won't Stay Running
DIYPNP built by Braineack. 1995 N/A Miata, stock FP, stock injectors. GM AIT. Fixed timing set in TS to 10º.
Can get it started, but it idles rough for a few seconds and dies. I can give it some gas, and it'll run, but as soon as I let off the gas it dies. Not sure if this log works, attached.
Help?
Can get it started, but it idles rough for a few seconds and dies. I can give it some gas, and it'll run, but as soon as I let off the gas it dies. Not sure if this log works, attached.
Help?
#12
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the PW on those logs is really low. I wouldn't expect it to idle lower than 1.6ms or so, im seeing it dropping down to .9 in that log.
under fuel settings and injector dead time. can you put the deadtime value from .850 to 1.2ms.
under fuel settings and injector dead time. can you put the deadtime value from .850 to 1.2ms.
#16
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looking at the log, what it really seems like is that the idle valve isn't doing anything. it's pegging open to its fullest but your idle speed is unaffected. But even still, your min. idle speed should be like 600-700rpm, not 200-300.
it IS really hard to see what's going on with fuel without a wideband.
it IS really hard to see what's going on with fuel without a wideband.
Last edited by Braineack; 09-13-2015 at 10:27 AM.
#18
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So how you you calibrate the MAP sensor?
I assume nothing further needs to be done for the AIT other than Tools>Calibrate Thermistor Tables>Air Temperature Sensor>GM?
Is there anything different for MAP? Tools>Calibrate MAP/Baro>??which selection?? Maybe that's my problem, incorrect MAP selection?
I assume nothing further needs to be done for the AIT other than Tools>Calibrate Thermistor Tables>Air Temperature Sensor>GM?
Is there anything different for MAP? Tools>Calibrate MAP/Baro>??which selection?? Maybe that's my problem, incorrect MAP selection?
Last edited by huesmann; 09-15-2015 at 02:36 PM.
#20
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OK, still no WB installed (waiting on O2 sensor socket/wrench), but with AFR and EGO Control set to Narrowband in TunerStudio, setting Calibrate MAP/Baro to 4250 gets it to idle, albeit roughly. I guess that's progress?
Last edited by huesmann; 09-16-2015 at 09:27 PM.
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Mikel
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09-28-2015 04:46 PM