![]() He said forget scanners, if you have an old PC, free software and an ALDL to USB adapter cable you can read sensor values, etc on the fly! He was right. ![]() hmmmĮmailed Norm at Affordable Fuel Injection to recommend any scanners, etc to diagnose. (high idle and rich when fully warm.) No error codes. My FI system was acting strange after running great for 5000 miles. I knew the OBD1 system would deliver stored error codes but assumed that was all. ![]() The few Regals produced after 1990 should be OBD1 TBI systems. The P30 didn't get fuel injection until 1990, so most Barth 454s don't have fuel injection. The fuel injection system I recently installed is actually a retrofit OEM GM throttle body system circa 1990. From the early 80's to about 94 GM used computers with the OBD1 (OnBoard Diagnostics 1) system. ![]()
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