Bronco, I am turning this thing over to a friend that is going to look at it in his spare time. The further I get along in my healing process the more I am willing to admit that the daily activities are restricted to anything that includes a recliner. Damn I hate this. Anyway tried once again to get it smogged and something popped up that may help. Oh dropped the timing from 10 to 4.
the readings are as follows 15 MPH 2000 RPM CO.2 meas 16.0. O2 meas 0.1. HC max 86, meas 58. CO max 0.51, meas 0.03. NOX max 711 meas 636.
25 MPH 1969 RPM 15.3 0.1 72 27 0.65 0.01 875 1841!!!
Hopefully the shorthand comes through readable. What I observe is that the RPM's are within 30 but the speed is 10 MPH faster meaning that the throttle is wider open and theoretically manifold vacuum is down. If I am interpreting this correctly what ever should be richening the mixture as manifold vacuum is going down isn't. If anything in your experience might shed light on this I will Pass it along.
Thanks
Dwight
BACK TO THE RECLINER
Hey Grumpy, I have heard that the road back from covid can be long, (sorry)
She is definitely lean, (>01 CO) the lower RPM just means it upshifted. (Means more load) Should have richened.
I know you've been through the parts mill with this thing.
My thought is the injector flowrate doesn't match the PCM software perfectly.
Not sure what the solution is other than find a used pcm and injector set from a running 2.9L, or a ton of research and verify the PCM calibration and injector flowrates, (There are many variations out there.)
Hope that helps, take care!
Cheers
(Off to Pomona tomorrow)