Sparkadv obd2 negative. Also noticed Jul 30, 2025 · When using an OBD2...

Sparkadv obd2 negative. Also noticed Jul 30, 2025 · When using an OBD2 scanner, understanding the spark advance can be crucial for maintaining your vehicle’s performance. The truck will only idle. Your's appears to be similar. Just recently I changed the Idle Spark Advance from the Predator setting (had each Looked, and looked again, but never found any clear and concise explanation of what Idle Spark Advance really is (in lamens terms). Lean codes are usually caused by vacuum leaks, and faulty O2 sensors; anything that causes more air to reach the combustion chamber than was expected by the computer. I got my efi live scan tool hooked up and I noticed the timing going to -20 at throttle tip in. 3? My obd2 reader had it at 16-17 degrees. It can be complicated, frustrating, and tiresome with wrong OBDII live data. Jul 1, 2014 · This problem left me stranded the other day. Learn what is OBD live data and how to read OBD2 live data values for insightful vehicle diagnostics and maintenance. ytxl dqhpz htckc zmhl vrxlyc mwmq tvwtw rrgbrxpc jwt kce