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2answers
197 views

Roaring sound when starting or running with my 95 LT1 Camaro Z28

My car has had an intermittent starting problem with moisture since the beginning of this year. When it rains, it's either very difficult to start or it won't start at all. I was planning on figuring ...
2
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1answer
453 views

Normal spark advance for 96 LT1 engine? STFT also varies bank 1 vs bank 2. What does it mean?

I used my HP Tuners as a scan tool on my 96 LT1 in an Impala SS. The "Advance" as read by the tool sits at -12 deg at idle, then goes down to -35 deg if I rev it (no load) to about 2k RPM. I'm ...