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| First start on 2g MAF and no O2 cycle?!?! http://www.4g61t.org/forum/viewtopic.php?f=6&t=39295 |
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| Author: | modicaUSMC [ Sat Nov 29, 2014 3:47 am ] |
| Post subject: | First start on 2g MAF and no O2 cycle?!?! |
So SD was not idling worth a damn and I have a boost leak free system up to 15 psi where my tester blew off haha, I cant seem to get the O2 to cycle at all!! Baro, IAT and engine temp look good, airflow is good, but not even during cruise will is cycle! im on v3 lite heres my ECMlink... link http://www.ecmtuning.com/forums/showthr ... post664733 am I missing anything or is my 4000k mile old O2 sensor bad? it cycled on SD but not on the MAF. Any help would be great guys im pulling my hair out. and no I don't have a wideband yet, Xmas is slowing progress ATM |
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| Author: | Natedog [ Sat Nov 29, 2014 10:00 am ] |
| Post subject: | Re: First start on 2g MAF and no O2 cycle?!?! |
I ran into an issue years ago where the car wouldn't come out of open loop due to the thermostat the parts store selling me being too cold, I can't remember if the 02 wouldn't cycle at all or if it wouldn't adjust trims to it... Id try another 02, sure it sucks to spend the money, but playing with the cars, you will need another one sooner or later. |
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| Author: | modicaUSMC [ Sat Nov 29, 2014 6:49 pm ] |
| Post subject: | Re: First start on 2g MAF and no O2 cycle?!?! |
So if I take the airflow numbers ECMlink wants me to use on MAFcomp the O2 will cycle but the rpms are at 1500 and surgeing like crazy but fuel trims are +/- 2%. If I take away airflow then it idles way better but fuel trims are +17% and the O2 doesn't cycle anymore. I'm confused |
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