Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - ka24de runs nicer with 91 but still loses power

driftfreek · 03-22-2011, 03:13 PM

Hi guys, i dont know much about how to diagnose problems so im reaching out for your help.i have a problem with my ka24de. when i used 87 octance my engine would not rev smooth. at wot it lose power for a quick instant, then keep climbing up the rpms then lose power again, then keep climbing, etc. it would lose power 3 to 4 times before i need to shift( at 5800rpms). then i switched to 91 octane and it would run smoother and would only lose power ONCE at high rpms. i tested my tps sensor and its good. what should i do to fix this? whats causing this to happen?

03-22-2011, 03:13 PM	#1
driftfreek Join Date: Jul 2006 Location: oc Posts: 48 Trader Rating: (0)	ka24de runs nicer with 91 but still loses power Hi guys, i dont know much about how to diagnose problems so im reaching out for your help.i have a problem with my ka24de. when i used 87 octance my engine would not rev smooth. at wot it lose power for a quick instant, then keep climbing up the rpms then lose power again, then keep climbing, etc. it would lose power 3 to 4 times before i need to shift( at 5800rpms). then i switched to 91 octane and it would run smoother and would only lose power ONCE at high rpms. i tested my tps sensor and its good. what should i do to fix this? whats causing this to happen?