Surreptitious.....

[oldeskewltoy]

Wow.... I've been quite negligent.... it has been nearly 16 months since an update.....

The first bit of news is I finally chucked the General Exclaim tires... they were just crappy....

In their place I got a set of BF Goodrich Comp2 in 195/50/15



in addition, I recently took a crap shoot on Yahoo Japan, acquiring the molded front splash guards for my car - red arrows point to where they fit around my trim





Over the past year plus, I have begun (with many friends help and encouragement) to actually learn something about my management system - the FJO 341B.


This past December one of these friends and I did a bit of added load tuning. "Added load" are draws on the engine that may cause it to idle down, or stall. The first thing we did was add 1 degree of timing automatically when the cooling fan turns on. In addition we added some ignition as the volts drop a total of 2 degrees volt reading below 11 volts. This has made the idle with loads far more reliable.



More recently I received notice that I was do for emissions testing once again, every 2 years....

Well if you remember 2 years ago her first attempt she failed as a "gross polluter" her numbers then were 1100HC, and 5.0CO. The requirement to pass is 220HC and 1.0CO. This time the first attempt to pass also failed, but the numbers were far closer 470HC and 1.2CO

Now as to learning more about the FJO.... one thing we learned... how to adjust idle fueling.......



in the middle of this set up screen is "idle injector time", along with "idle manifold pressure". Originally these were set based on a larger engine... one of the adjustements we did early was change manifold pressure, it was raised from 30kpa to 50kpa, and injector time was lowered by over 35%. This gave us a MUCH smoother idle, and more control.

Back to the current emissions test... Once I had the new #s(470HC, 1.2CO), I had a plan of of attack, take some of the idle injector time out... we lowered the injector time from 2.37msec to 2.22msec and the afr went from 13.6-14.2, up to 14.7 to 15.2. This time I went back to emissions and she passed... 110HC, .0556CO


This time it should be easier to keep her clean too.......

Now I need to do is figure out a proper acceleration enrichment table



this one doesn't look like it is set with anything but haphazard guesses