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EV Help

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kmartin:
I have a '04 Cal EV that I believe is in need of some mapping help.  It seems to run good, though I have an annoying flat spot at small throttle opening and relatively light load around 4000 RPM when cold.  It's great when I get it good and hot, and when the ambient temperature is good and hot. I'm mostly satisfied with the way it runs but have never gotten more than 30 MPG and have a lot of soot in the exhaust

I've replaced the TPS and adjusted the throttle body's enough times to convince myself I know how.  I replaced the cylinder temperature sensor, spark plugs, air filter, and fuel filter.  Guzzidiag indicates a correct ambient air temperature and I believe the engine temp is correct.  While i have no reason to believe that the fuel map has been changed, I cant be certain that it hasn't.  I've never ridden a California that is known to be set up well so I have nothing to compare.

Can someone provide a known good fuel map, or a stock map that I may compare mine to?  I'm not aware of anything that I haven't checked that can cause this.

Thanks,  Keith

Wayne Orwig:
Have you checked the idle trim value? On my 2004 EV, I had the idle trim go whacko a couple of times for no reason.

Dilliw:
Hey let's meet in hill country one day (me and my EV are in S. Austin). 

Assuming it's not the computer/tps stuff, have you checked your exhaust crossovers for leaks?  The metal in the "muffler" underneath is really poor and will crack in many places.  Also the welds on the front crossover are prone to separate.  I  had issues in both spots and every time the indicator was my mpg.

 

s1120:
Pretty much in the same place with my 02. Does it have any mods on the bike? H pipe, different mufflers, open airbox etc? On some bikes they can make a huge difference in running. Mine had mods, and when I got it it hardly ran at all.  Check well for any vacuum leaks. Over time the stock hoses harden, and start to crack. Also check the throttle body to head rubbers. They can crack and leak air also, and over time the clamps can loosen. Ive been fighting this on mine, and I am slowly getting it better and better.

Tom H:
Check your PM.

What did you set the baseline at for the TPS? Did you back out the idle screw and be sure the butterfly was closed? Then what did you set the LH TB at for idle?

Tom

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