more info on your setup would be nice. is it the sir? if so, you might have not wired your second o2 sensor up like you're supposed to, or they might be switched.
Yeah i have the SiR b16a (OBD-1) so i think. It has 92-95 Si Harness. ERICK'S RACING Chipped p28 ECU. Hi-Flow Cat. 4-2-1 Header, cold air intake. APEX'i VAFC.
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