PDA

View Full Version : incorrect rpm reading



mnichols465
December 15th, 2010, 08:19 AM
efi is giving false data. loaded some pids to check things out including the engine rpm pid. It read 8150 on the computer but instrument cluster only reads about 650 or so. other pids I selected also read the numbers 8150 but with decimals points in different places such as 8.150 or 81.50 but it does appear to be reading something because these values do change ever so slightly. so the question is, what am I doing wrong?