1996 Pickup will not idle

Tiny
KAPTINDAN
  • MEMBER
  • 1996 NISSAN TRUCK
I have a 1996 Nissan pickup with a KA24DE that will not idle. It starts fine but after 5 minutes or so will start to sputter them eventually die. Bad gas smell goes along with it as well. I am at a loss as to what it is. I was sure it was the MAF sensor but it was not. Lucky me! Lol
Thursday, November 15th, 2007 AT 4:41 PM

13 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Find the IACV/AAC valve and EGR clean it out and test the TPS.
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Thursday, November 15th, 2007 AT 7:24 PM
Tiny
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I've removed the EGR valve and cleaned it out, it was closing properly. I removed the TPS and measured it against a new one at the parts store and it seemed to be fine. Not sure how to check the AAC vavle.
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Friday, November 16th, 2007 AT 7:57 AM
Tiny
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To include all the symptons, the check engine light was coming on prior to it not running with a cylinder 3 misfire. Bad gas smell associated with idling, and when it stalls it will sometimes diesel like its running lean.
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Friday, November 16th, 2007 AT 9:03 AM
Tiny
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Did you fix the misfire on 3? Check the fuel pressure with a gauge.
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Friday, November 16th, 2007 AT 12:05 PM
Tiny
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Working on making an adaptor to check the fuel pressure.I plan on replacing no.3 fuel injector anyway.
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Sunday, November 18th, 2007 AT 6:17 PM
Tiny
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So the fuel pressure for the system was 32psi and stayed consistant. So I am at a total loss as to what this problem is. The misfire I beleive is gone as well, it won't stay running long enough to write codes.
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Tuesday, November 20th, 2007 AT 12:29 PM
Tiny
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I connected a scanner to the ODBII port as well and noticed the O2 Sensor reading fluctuating between.04 to.880.O2 sensor was replaced.
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Tuesday, November 20th, 2007 AT 12:36 PM
Tiny
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I want to add that theres no throttle response at all. When you give it gas it acts like its not getting fuel.
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Tuesday, November 20th, 2007 AT 3:38 PM
Tiny
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Inspect/adjust the throttle position sensor's closed and WOT voltages. The TPS is like the accelerator pump on a carb system. If the computer don't see the correct position of the throttle is will not give fuel for acceleration.
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Tuesday, November 20th, 2007 AT 5:05 PM
Tiny
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I was sure it was the TPS and put a new one on and it still does the same thing.
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Tuesday, November 20th, 2007 AT 5:47 PM
Tiny
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Have you check the ignition timing and also for excessive backpressue in the exhaust system.
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Tuesday, November 20th, 2007 AT 10:53 PM
Tiny
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Another poster had a issue where his truck would not respond to the throttle as well and he replaced the distributor and it fixed the problem. I will try that next. Everything else is new. Lol! And there is no back pressure due to the cat being removed.
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Wednesday, November 21st, 2007 AT 5:53 AM
Tiny
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Update on my issue. I replaced the distributor and that corrected the problem. At first, I looked at the spark and it was bright blue. Thinking that the distributor was good. Don't let that fool ya. Mine was bad.
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Wednesday, November 21st, 2007 AT 4:06 PM

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