blazer idle rough

:screwy: HELLO THERE HAS NE1 OUT THERE HAD A PROBLEM WITH THERE 4.3 LITER BLAZER IDLEING ROUGH. THE RANGE IT RUNS THROUGH IS ABOUT 500 TOO 1000 RPMS AND WILL DO IT COLD HOT COMMING DOWN FROM CRUISING SPEED SITTING AT STOP LIGHT. ANY HELP WOULD BE GREAT. THIS IS MY SISTERS TRUCK AND I WOULD DO THE DIAGNOSTICS IF I WAS IN THE COUNTRY. CAN YOU SHORT OUT THE CPU AND READ THE CODES LIKE YOU COULD WITH THE OLD SCHOOL CPU'S? IF SO WHAT SLOTS DO YOU PLUG THE WIRE INTO? SEND REPLYS TOO [email protected] THANKS TOO ALL WHO CAN HELP

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