KA, Knock sensor problem? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

blackrms13 · 09-30-2009, 10:57 AM

I have a stock 95 OBD-I KA in my s13 with supposedly about 80k miles

the engine at random times will have
-rough idle + "thomping" noise/vibration
-holding idle at about 1500 rpm + misfires
-possibly running rich(smells really bad)
-code 34 stored in the ECU, but no CEL

sometimes it will run VERY smooth like nothing is wrong what so ever, sometimes it will run VERY shitty...

i dont really feel any power-loss at all...so yeah

someone suggested its the Knock Sensor sub-harness thats not sending good signal to the ECU, and thus pulling the timing and what not causing this problem

any ideas?

blackrms13 · 10-07-2009, 03:43 PM

i think i solved the problem by replacing the KS....case closed

grnappletree14 · 10-07-2009, 10:02 PM

where did u get ur knock sensor at... and how much

blackrms13 · 10-08-2009, 01:13 AM

from a friend...he hooked me up

Nismo_tuner

i think he has like 2 more?

but ebay has them...but i duno how legit those are

09-30-2009, 10:57 AM	#1
blackrms13 Post Whore! Join Date: Jul 2007 Location: 626 Posts: 2,591 Trader Rating: (21) Feedback Score: 21 reviews	KA, Knock sensor problem? I have a stock 95 OBD-I KA in my s13 with supposedly about 80k miles the engine at random times will have -rough idle + "thomping" noise/vibration -holding idle at about 1500 rpm + misfires -possibly running rich(smells really bad) -code 34 stored in the ECU, but no CEL sometimes it will run VERY smooth like nothing is wrong what so ever, sometimes it will run VERY shitty... i dont really feel any power-loss at all...so yeah someone suggested its the Knock Sensor sub-harness thats not sending good signal to the ECU, and thus pulling the timing and what not causing this problem any ideas? __________________ 91' 240sx Fastback LE

10-07-2009, 03:43 PM	#2
blackrms13 Post Whore! Join Date: Jul 2007 Location: 626 Posts: 2,591 Trader Rating: (21) Feedback Score: 21 reviews	i think i solved the problem by replacing the KS....case closed __________________ 91' 240sx Fastback LE

10-08-2009, 01:13 AM	#4
blackrms13 Post Whore! Join Date: Jul 2007 Location: 626 Posts: 2,591 Trader Rating: (21) Feedback Score: 21 reviews	from a friend...he hooked me up Nismo_tuner i think he has like 2 more? but ebay has them...but i duno how legit those are __________________ 91' 240sx Fastback LE

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

10-07-2009, 10:02 PM	#3
grnappletree14 BANNED Join Date: Aug 2006 Location: SOCAL/chino hills (909) Posts: 1,829 Trader Rating: (6) Feedback Score: 6 reviews	where did u get ur knock sensor at... and how much