Question about 1992 Nissan Pickup
The car had a breakdown and all the exhaust valves were damaged after replacement the car starts and can't maintain idle-ling what might be the problem
It sounds like you have an exhaust obstruction. Check that you have good exhaust flow out of the tailpipe while the car is running. If you do not have good flow out of the tailpipe, begin trying to find the clog. (You will likely find that the "breakdown" ruined the catalytic converter and clogged it.)
Posted on Jun 11, 2014
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Posted on Jan 02, 2017
SOURCE: 300zx engine idle
The reason it's stalling out is because of the adjustments you made to the CAS and TPS. You need to reset the CAS where it was, since when you rotate this sensor, you change the ignition timing. As for the TPS, that also needs to be reset to how it was. The way to adjust the idle on this engine is with a screw on the idle air control valve (IACV). At the back corner of the engine, on top on the driver's side, the IACV is bolted on. If you crouch down next to the driver's fender and look straight in at the IACV (with a flashlight) you will see a screw recessed in there, with the head pointing toward you. That's the idle adjustment screw. With the engine running, AFTER you have reset the CAS and TPS, turn this screw until you are able to set a warm-engine idle of roughly 750 RPM. Messing with TPS voltage and ignition timing is a sure-fire way to stall or blow up your engine.
Posted on Oct 19, 2008
sounds more like a vacuum problem -temp activated vacuum port -distributor advance or loose vacuum line to or from evaporative control canister if engine bay equipped
does it have a throttle position sensor starting to fail ?
I'm not a nissan guy --more a honda,toyota,ford and GM guy --or classic internationals
other possibles try autozone.com --after waiting for a better answer here
hope this helps
Posted on Apr 06, 2009
Check the heat shield on the Catalytic Converter, after a few years they start to rust off and rattle. Crawl under the Pathfinder and bang along the Converter and muffler area and see where it's coming from.
Good chances are, it's from the heat shield since you already had everything changed from the Cat back.
Good luck and hope this helps.
Posted on May 11, 2009
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