The thot plickens.....I checked fuel pressure yesterday under a few different scenarios- key on engine off (48ish psi), motor running at idle (38 ish), and after sitting for about 10 minutes with the key out (gradually dropped from 48-25 or so after about 7 mins of holding steady). I recalled that I never put an oe MAF back in it when I replaced mine, and was at the JY today, so I grabbed one. hard to say, as I don't think I've driven it enough since putting the oe maf in, but I've seen ltft's go back to -22 ish.
After combing back through a month's worth of data logs, I (surprise) have another question or two- what is the difference between the hO2s pid and the B1S2 pid readings? aren't the basically the same for an l67, aside from one showing in V, and one showing in mV? Either way, I'm seeing consistently lower than expected O2 numbers (never .9V, and some as low as .05V). There is fluctuation, but it seems slow and other than the extreme lows occasionally, it has not been enough to trigger a code. I've never had O2 sensors slowly move out of spec, just trip a light as if they've suddenly gone out. Is that even possible, or am I barking up the wrong tree worrying about the O2's?
