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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

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Old 03-25-2009, 10:36 AM   #1
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cold start problem

So i live in fairbanks and its cold well now its 9*F. I didn't have the truck plugged in to warm the block. I have just fixed all the problems and now this popped up like a zit before prom. The truck wouldn't start so I guessing its the cold start injector or the coolant temp sensor. I don't want to drop any more money down since this week I have spent a lot for a college student, its around 500$ this week on parts. My question is that would a coolant sensor cause this problem since its not telling the ecm to use the cold start injector?
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Old 03-25-2009, 12:07 PM   #2
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Could be a sensor.

Pull the CSI off and crank it. If fuel comes out you'll know that system is working ok.

Oh and careful. Gas ignites like crazy.
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Old 03-25-2009, 01:58 PM   #3
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After you make sure your CSI works you can try pulling out the cold start sensor, and the coolant temp sensor and clean em up. Remember to plug the threaded holes that they come out of as coolant may spill out. Do this with the engine cool/cold. if there is any scales of calcium or such on there that is what could be causing your difficult cold starts.
Mine used to have a problem with that since I cleaned them and also upgraded to a non-jerry wired O2 sensor.
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Old 03-25-2009, 04:38 PM   #4
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9*? Must have been in the morning. I just went to the SRC and the University sign said it was 29*!!!

If the coolant temp sensor isn't reading the temperature of the coolant, then yeah the CSI won't squirt. clean it all and make sure the wires arent shorted or anything.
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Old 03-25-2009, 05:31 PM   #5
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Guys.......coolant temp sensor isn't related to the cold start system. Just the timing switch for the cold start injector.

Run a wire from the cold start timing switch connector........ground side, not sure which, either one of the two terminals.... to the battery ground. See if that helps. This bypasses the timing switch, if it's going bad. If it is going bad, you won't get fuel from the cold start injector.
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Old 03-25-2009, 06:37 PM   #6
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well i tested and no fuel dry as a desert.

What the heck is wrong with this state no one has any Toyota parts! The dealer doesn't even carry them!!! I have to order them and it takes a week to get here gosh Im pissed.

Back home the parts store has everything if not its just down the street. I official hate alaska.
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Old 03-25-2009, 06:45 PM   #7
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What did you test? The cold start injector? Did you try running a wire for the ground at the timing switch connector?
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freckles, shmeckles... that was your acne reflecting on my pearlescent skin.
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Oh...that was me thinking...then stopping mid sentence...then some more babbling and such. LOL
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Old 03-25-2009, 07:04 PM   #8
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I ran the - from the cold start timing switch wire harness to the - battery terminal. Since i didn't have a long wire i used my uhms tester wires and connected them with a smaller wire.
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Old 03-25-2009, 07:06 PM   #9
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Did you try both terminals?
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freckles, shmeckles... that was your acne reflecting on my pearlescent skin.
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Oh...that was me thinking...then stopping mid sentence...then some more babbling and such. LOL
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Old 03-25-2009, 07:07 PM   #10
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yep both of them well i do have 230,000+ miles and its original.
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Old 03-25-2009, 07:09 PM   #11
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Quote:
Originally Posted by spanish-road View Post
What the heck is wrong with this state no one has any Toyota parts! The dealer doesn't even carry them!!! I have to order them and it takes a week to get here gosh Im pissed.
i feel for you... living in the land of GM, i get that a lot to..
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Old 03-25-2009, 07:11 PM   #12
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blah they only have the basic parts but some only sometimes.
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Old 03-25-2009, 07:15 PM   #13
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Hmm.......well, if you're sure the wire has good continuity the way you rigged it, then I'd would suspect your cold start injector or the wiring to it. Buggers.
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Context is everything....
Quote:
Originally Posted by abecedarian View Post
freckles, shmeckles... that was your acne reflecting on my pearlescent skin.
My favorite method of troubleshooting..... :D
Quote:
Originally Posted by HighLux View Post
Oh...that was me thinking...then stopping mid sentence...then some more babbling and such. LOL
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Old 03-25-2009, 07:17 PM   #14
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yeah im going to test again get a wire from the shop and if thats it im going to place the order or swing by the junk yard.
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Old 03-25-2009, 07:17 PM
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