Logged data

NatesIH

New member
I am attaching some data that I just logged. This is for a 74 Scout with a amc 256 six. I have the afi system installed without the timing controlled dist. Fuel pressure is good at 13psi. The problem is once it warms up and goes into closed loop, it falls flat and will not run under a load. Idles good just wont go. The data logged is about 10 minutes worth. All I can do is idle and accelerate slightly. I cant drive it down the road at all. Let me know if you need more data logged.
Ive checked a whole lot to eliminate mechanical issues; made sure of no vac leaks (over and over), checked many voltages, grounds ect.

Let me know what you guys think.
 

Attachments

  • 20071102_175027_BLM.txt
    8.2 KB · Views: 433
  • 20071102_175310_INT.txt
    8.8 KB · Views: 451
  • 20071102_175317_O2.txt
    8.9 KB · Views: 454
  • 20071102_175324_KNOCK.txt
    867 bytes · Views: 477
You look way too lean.
165-172 when you had valid data.
Doesn't look like you tried to drive it in that blm log.

Would also help to see a data log using the data logger button.
Check all boxes except the raw box.
Hit start before ou start and stop after you turn it off.
 
Here is the log data. I sent this to norm at afi and he sees that the o2 is not recieving voltage indicating a wiring problem.
 

Attachments

  • 20071102_172105_LOG.txt
    65.6 KB · Views: 380
Here is where I am at. The harness was wired incorrectly for a heated o2 sensor, which I guess I didnt even need. Norm had me switch two wires to correct. Now the Scout wont stay running at all. After going over sensor voltages with norm, he determined that the o2, map and ECM were fried due to the incorrect wiring.
He is sending me the new parts next week and we will see what happens then.
 
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