Quote:
Originally Posted by FR-S2GT86
Sensors don't always fail open or shorted, sometimes they can fail intermittently or out of calibration. So the simple way to verify in the latter case would be to substitute a known good sensor.
As for the coolant temp sensor, that looks normal to me for that ambient temperature, as it takes a while for the coolant temp to increase and catch up along with the ambient air around the car as the morning goes by while the vehicle sits.
Looking forward to seeing how it runs after it's warmed up and after the O2 sensor is reconnected.
I need to go work on my amp rack now but I'll check back in later.
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Im sure ill just use it since im going crazy trying to figure this issue ive been having. Especially since ive seen that my voltage for the upstream o2 is always pretty high. Googling what is normal voltage its like under a volt for idle. Mine is always around 2.2V?
a/f sensor #1 voltage is what im looking at, not sure if that is the correct parameter for upstream o2 voltage.
I have warmed up the car and connected the o2 plug, cleared code and startup. Some interesting things happen with LTFT.
3 different logs
1. O2 connected cleared code and startups just fine. She does eventually stall out
2. I restart it and notice LTFT is highest ive seen 25%
3. Another startup and ~20% LTFT
So LTFT doesnt really seem to stable at every startup
https://datazap.me/u/jrhudson/02-sen...-and-high-ltft
Also i have added my boost gauge line to the brake booster line(its not past the check valve, dont worry).
I saw 19-20 -inHg with everything plugged in but without the o2 connected it was around 16-17-inHg. Not sure what this indicates but its what i saw.
Amp rack? Dont know what that is but i hate doing electrical or wiring stuff.
edit: i tested my o2 sensors and they seem to be alright.
I do suspect my injectors. I think that my old stock PI i have are most likely the issue. Earlier in the day, I saw somewhere on the forums that the car on startup only uses port until the car warms up. This explains why after i shut off the car and start her up after a short period, she fires right up. I shot Zach another email asking with the logs, maybe he'll have some good insight.