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Cobra Forums
The Terminator
Engine/Tuning
is this a fuel issue? or an air issue? how should i diagnose
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<blockquote data-quote="P49Y-CY" data-source="post: 16314560" data-attributes="member: 10216"><p>so it's been about a month and i haven't exactly fixed the car, but i actually have been driving it a lot lately, if only local.</p><p></p><p>i'd been doing a lot of testing for a while (went through more than half a tank of gas just idling in my garage lol), and the car is very consistent about stalling at between 27 and 35 minutes. like every time. then, it would start up again within 10 minutes. after i started it up again, sometimes it would run for over an hour before stalling, and sometimes i'd even have to shut it off myself.</p><p></p><p>my attempts at datalogging were inconclusive because none of the parameters that i was able to get to work seemed to give any me any useful information. like for example the egr duty cycle which i think would change after the first few mintues just stayed at 1.844 the whole time and the dpfe stayed at 8.500. short term fuel trim bank 2 was steady, but stft bank 1 was jumping all over the place. the fuel pump duty cycle was steady at about 0.23. but most of the parameters seemed to be jumping all over the place most of the time.</p><p></p><p>so, that's good enough for me for now, but like i say i have been driving it - and it gets into boost and seems to drive just fine. it's a blast. i just make sure i stay real local like only to the grocery store or the bank - places that are not further than about 15 minutes away, lol.</p><p></p><p>anyway one of these days i will probably start to dig back into it again... thanks again for all of you guys' help.</p></blockquote><p></p>
[QUOTE="P49Y-CY, post: 16314560, member: 10216"] so it's been about a month and i haven't exactly fixed the car, but i actually have been driving it a lot lately, if only local. i'd been doing a lot of testing for a while (went through more than half a tank of gas just idling in my garage lol), and the car is very consistent about stalling at between 27 and 35 minutes. like every time. then, it would start up again within 10 minutes. after i started it up again, sometimes it would run for over an hour before stalling, and sometimes i'd even have to shut it off myself. my attempts at datalogging were inconclusive because none of the parameters that i was able to get to work seemed to give any me any useful information. like for example the egr duty cycle which i think would change after the first few mintues just stayed at 1.844 the whole time and the dpfe stayed at 8.500. short term fuel trim bank 2 was steady, but stft bank 1 was jumping all over the place. the fuel pump duty cycle was steady at about 0.23. but most of the parameters seemed to be jumping all over the place most of the time. so, that's good enough for me for now, but like i say i have been driving it - and it gets into boost and seems to drive just fine. it's a blast. i just make sure i stay real local like only to the grocery store or the bank - places that are not further than about 15 minutes away, lol. anyway one of these days i will probably start to dig back into it again... thanks again for all of you guys' help. [/QUOTE]
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The Terminator
Engine/Tuning
is this a fuel issue? or an air issue? how should i diagnose
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