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 Cold Start Injector Time Switch...where to find?
#878897
04/03/08 10:12 PM
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Joined: Nov 2006
Posts: 86
OP
Getting the Wheeling Fever
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I have a 3.0 V6 that doesn't idle consistenly when cold. I know its supposed to up the idle until warmed up, and mine does do that, but it goes up and down erratically. I checked the cold start injector and the resistance is within spec, but I'm having trouble finding the switch to test it.
91 SR5 Xtra Cab, 298000km, 4" lift, 56" rear springs, 33-12.5R15 BFG Mud-Terran T/A KM2.....and an '85 axle still waiting to go in.
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Re: Cold Start Injector Time Switch...where to find?
[Re: rovers1973]
#878898
04/03/08 10:17 PM
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Joined: Jan 2001
Posts: 11,595
Forum Moderator
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Its on the very back of the engine, on the back of the intake manifold. THeres 2 or 3 other sensors with plugs on them. Coolant hoses run in and out of the little block.
But you dont need to access the switch to test it. You can probe the wires at the ECU to test the switch. Look up in the FSM (theres a link at the top of this forum) and it will tell you which wires go to the timer and what the values should be.
Check/clean your idle air control valve too.
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Re: Cold Start Injector Time Switch...where to find?
[Re: Adam F]
#878899
04/03/08 10:19 PM
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Joined: Nov 2006
Posts: 86
OP
Getting the Wheeling Fever
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Ok, thanks. I have the FSM, will try it that way.
91 SR5 Xtra Cab, 298000km, 4" lift, 56" rear springs, 33-12.5R15 BFG Mud-Terran T/A KM2.....and an '85 axle still waiting to go in.
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Re: Cold Start Injector Time Switch...where to find?
[Re: rovers1973]
#878900
04/03/08 10:21 PM
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Joined: Jan 2001
Posts: 11,595
Forum Moderator
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I tested my ECU temp sensor this very way. Came to find out my sensor was unplugged though! <img src="/forums/images/graemlins/zombie.gif" alt="" /> And if you need any cold start injector parts, I have the ecu temp sensor, time switch, and injector for sale 
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