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Originally Posted by GRock
Marren Fuel Injection in Oxford or Derby, CT does great things with injectors and you can have them serviced for about $25. Plenty of other companies too with RC engineering on the West Coast helping us out when we are out there. The equipment is very high tech to measure and balance but the procedure and fix is not that big a deal. Seen many engines benefit greatly from just this service alone!!
As for idle problem, open your throttle blade a bit more and REDUCE your IAC to about 25 nominal maybe less. Remever that you are gulping big air under throttle with that TB and then shutting off the gas causes the IAC to rush back so make adjustment between the butterfly and IAC to find a good median. Also add fuel at the 2.5% and 0 lines from about 500 to 2000 RPM just a little at a time and you should be OKafter you find your happy place. It is taking too much time for the IAC to get back to idle mode so use the TB to give it the air instead of the IAC steps. Forget auto IAC and barometrics unless you live in the mountains or are on steady run across the country. Remember that barometrics are read and compensated for at every start up.
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From what Chris said, lowering the values in the 2D Time based IAC Start adder table will accomplish the same thing. IT will allow the computer to react quicker to the IAC motor's movement. I still have all 0's in my table, and it seems to be working fine.
