can the 99 saturn be tuned?
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can the 99 saturn be tuned?
if it has the GM L4Big ecu then you might be able to. The oldest visible tune from saturn is a 2000 L series with L4Big ecu.
Earlier then that was the chev cavalier which also had the L4Big ecu.
if you dont have the software i suggest finding someone who can perform a quick ecu connection so a log file can be generated. from the log file you can get ecu model, os, hardware information which can be emailed to hpt tech for support verification.