Although I am ditching hondata for aem in the very near future, I have a quick question.

When I have the ecu socketed, I had them load a basemap for my setup. Since I do not have the rom-editor, I have no idea what they did with the timing. I went to check my ignition timing the other day with the light and it appeared to be way advanced at idle. After rotating the dizzy all the way back, it is still showing advanced, just not quite as much. Is this due to the hondata basemap? The mechanical timing is perfect as are the cam gear settings, so please nobody suggest that.

Any feedback would be great, thanks!

 

bump

 

did you jump the CEL harness, so that it doesn't automatically go to advance?

to check timing, you have to trip the CEL, then it should be set to 16 degrees. Although normally its good for a tuner to crosscheck what the hondata datalogs show to what the car is.

 

I didn't know not jumping the jumper would advance the timing. It was my understanding that it just prevents the ecu from trying to correct it. If not bridging the jump causes the base timing to advance, then I'm sure that's where my problem is.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by maxspeedhonda &raquo;</TD></TR><TR><TD CLASS="quote">I didn't know not jumping the jumper would advance the timing. It was my understanding that it just prevents the ecu from trying to correct it. If not bridging the jump causes the base timing to advance, then I'm sure that's where my problem is.
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base timing is normally 16 degrees, normally when i'm tuning a car idle will be set to around 18-20 degrees of timing, so if you don't jump the harness, the ecu will advance timing to whatever its set at. Therefore jumping the harness sets the timing to base timing

easy mistake.

 

Thanks!

 

or not.

with hondata, even if u jump the ecu, the ignition timing wont change, it stays whatever the ignition curve inconjunction with the dizzy is.

to properly set the ignition timing, set the idle area in the ignition curve to 16 degrees, then adjust the distributor until you read 16 degrees at the crank w/ a timing light.

 

I see what you are saying. I do not have the rom editor, so I really can't do much about it huh?