93 240sx S13 Hesitates when accelerating on low rev - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

marryson · 05-30-2012, 09:44 PM

I have posted this before but i thought I fixed the problem..... so here i am again. my car would hesitate (Rock back and forth) when accelerating below 2000rpm. This started happening when my coolants were leaking and I was driving for 10-20 minutes without even knowing about it. when I got home, there was light smoke coming out of the engine somewhere. when I fix the leak and replace my coolant, everything is fine except for the hesitation issue. I changed my spark plug but that didnt help. any ideas ??

drifter1992 · 08-13-2012, 08:16 PM

my buddy had a hestitation, he changed his plug wires and it helped but still had a bit of hesitation and then changed his igntion wire from the distributor to the igntion coil and it went away, so maybe try that

marryson · 08-13-2012, 08:28 PM

thank you very much for replying to this old post, I will give it a try thx

S13-1UZ · 08-13-2012, 08:49 PM

Check the egr or egr backpressure valve with a vacuum tester. It caused hesitation on my KA S13.

RV_S13 · 08-23-2012, 10:13 AM

Plugs, wires, check your timing. It's supposed to be 18-22* btdc. Mine was set at 25. It idled smooth but hesitated like a mofo. Once I set it back down I gained a ton of torque back.

05-30-2012, 09:44 PM	#1
marryson Leaky Injector Join Date: Apr 2011 Location: Vancouver Age: 31 Posts: 67 Trader Rating: (0) Feedback Score: 0 reviews	93 240sx S13 Hesitates when accelerating on low rev I have posted this before but i thought I fixed the problem..... so here i am again. my car would hesitate (Rock back and forth) when accelerating below 2000rpm. This started happening when my coolants were leaking and I was driving for 10-20 minutes without even knowing about it. when I got home, there was light smoke coming out of the engine somewhere. when I fix the leak and replace my coolant, everything is fine except for the hesitation issue. I changed my spark plug but that didnt help. any ideas ??

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08-13-2012, 08:16 PM	#2
drifter1992 Join Date: Jul 2012 Location: texas Age: 28 Posts: 8 Trader Rating: (0) Feedback Score: 0 reviews	my buddy had a hestitation, he changed his plug wires and it helped but still had a bit of hesitation and then changed his igntion wire from the distributor to the igntion coil and it went away, so maybe try that

08-13-2012, 08:28 PM	#3
marryson Leaky Injector Join Date: Apr 2011 Location: Vancouver Age: 31 Posts: 67 Trader Rating: (0) Feedback Score: 0 reviews	thank you very much for replying to this old post, I will give it a try thx

08-13-2012, 08:49 PM	#4
S13-1UZ Join Date: May 2012 Location: Long Beach Age: 30 Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	Check the egr or egr backpressure valve with a vacuum tester. It caused hesitation on my KA S13.

08-23-2012, 10:13 AM	#5
RV_S13 Join Date: Aug 2012 Location: Orange County Age: 31 Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	Plugs, wires, check your timing. It's supposed to be 18-22* btdc. Mine was set at 25. It idled smooth but hesitated like a mofo. Once I set it back down I gained a ton of torque back.