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what could cause a bad missfire when cold?
83 na 280zx. What could cause a bad missfire when cold? I accidently ripped the wire off the thermo switch could this cause it?
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Yessir...
Originally Posted by NismoPick
(Post 291798)
There are 3 sensors...
#1: Water temp sensor for dash gauge #2: Water temp switch for the aux fan #3: Thermotime switch for the cold start valve (n/a only). From the FSM (you should download it here: XenonS130 - S130 Reference if you haven't done so yet). :D http://i60.photobucket.com/albums/h8...M/TSensors.jpg |
Thank you mr. Pick. I was going nuts.
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Is the water temp sensing switch for the injector fan? It only missfires when cold once warm is drives amazing. Its so embarrasing leaving work with a bad missfire. Also the temp guage is at 3/4 at idle 1/2 on streets and 0 at freeway speeds what do those symptoms mean?
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Originally Posted by aruiz714
(Post 327239)
Is the water temp sensing switch for the injector fan?
Originally Posted by aruiz714
(Post 327239)
It only missfires when cold once warm is drives amazing. Its so embarrasing leaving work with a bad missfire.
Originally Posted by aruiz714
(Post 327239)
Also the temp guage is at 3/4 at idle 1/2 on streets and 0 at freeway speeds what do those symptoms mean?
Check coolant level. With an infrared thermometer, check temp at thermostat housing at operating temp, the check temp at lower intake hose. If cooling system is working properly, you should see a 20*F-30*F temp drop. |
How do I check the thermal time switch and cold start valve my computer is not working at the moment.
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