what could cause a bad missfire when cold?
07-30-2013, 07:21 AM
#2
Yessir...
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).
#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).
08-09-2013, 07:20 PM
#4
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?
08-09-2013, 08:03 PM
#5
Yes, as stated above.
Check cold start valve, thermotime switch, and air regulator.
Check the connection (ohm test).
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.
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.
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