>>>I've hooked it up to my VIN "S" '87 Camaro and it does decode most of the >>>values (rpm, IAC, coolant temp, TCC, integrator, TPS, O2 rich/lean, Loop, >>>etc.) I've checked out Oliver's page and saw the Qbasic code. Do you know if he has published the schematics or is selling them Etc. I assume you have bought/built one. Thanks, Jim Santoro