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 Post subject: Re: Why all the cold start issues...
PostPosted: Thu Feb 13, 2014 2:08 pm 
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weeks101 wrote:
thermorex wrote:
Anyways, if you end up building the intake elbow for it, please count me in, I can send you a payment anytime.


Sent you a PM.


Thanks, got it and replied back.

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 Post subject: Re: Why all the cold start issues...
PostPosted: Sun Feb 23, 2014 6:00 pm 
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Location: Tiverton, RI
I have had a new 5V GP failure after about 14 months. Of course, it has to be #3. My starting is ok to about 15 to 20, although with fresh plugs, I was doing good down to 5. I now plug in when it gets below 20 if I can.

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 Post subject: Re: Why all the cold start issues...
PostPosted: Mon Feb 24, 2014 8:03 pm 
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Had a failure on one 5V GP after about a couple years, for whoever is keeping track of 5V GP reliability. Don't even need a GP to start as I'm in Southern California but can't have an OBD light on for smog test so had to get it fixed.


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 Post subject: Re: Why all the cold start issues...
PostPosted: Tue Feb 25, 2014 3:36 am 
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yakers wrote:
Had a failure on one 5V GP after about a couple years, for whoever is keeping track of 5V GP reliability. Don't even need a GP to start as I'm in Southern California but can't have an OBD light on for smog test so had to get it fixed.
That is so stupid. I can't get an inspection sticker either with a CEL. The glow plug has 0 to do with emissions or safety.

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 Post subject: Re: Why all the cold start issues...
PostPosted: Tue Feb 25, 2014 11:02 am 
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It sort of does, for those 300 seconds after you start the engine, it will produce more smoke since the temperature in the combustion chamber is lower and the fuel won't be burned as it would be in a warmer chamber. But honestly, it is stupid no matter what, lol, as most of the epa regulations.

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 Post subject: Re: Why all the cold start issues...
PostPosted: Tue Feb 25, 2014 5:39 pm 
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Joined: Mon Aug 19, 2013 7:20 pm
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Location: West Georgia
Why not just do a smart controller for the intake heater?

You could use an Arduino (http://www.arduino.cc/) and program it to turn on a FET to run the heater on key one events.
Then turn the heater off or reduce power via PWM during the start/cranking event. You could use 4 FET's and setup an H-bridge controller and feed the heater an AC square wave and even measure the intake temperature based on the heater's impedance feeding it more power at key on and tapering off as it gets to peak temp.

Arduino's range from $10 for the mini to over $60 for the really big ones.
FET's range from under $1 to maybe $4 a piece. You only need four for the H-bridge.
Then a handful of random resistors and caps.

Not counting connectors were talking way under $30.

Connectors can get expensive. But thats still only a few bucks each and you maybe need 2 or 3 sets(female + male).
-Avery

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 Post subject: Re: Why all the cold start issues...
PostPosted: Tue Feb 25, 2014 6:33 pm 
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Wow, whatever you said really sounds good. If it would control a heater in the elbow Weeks101 designed it would act a preheater to the intake. What would it take to drill and install a heater grid to the intake manifold.


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 Post subject: Re: Why all the cold start issues...
PostPosted: Tue Feb 25, 2014 8:35 pm 
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Does anyone have data sheets for the heaters that have been presented above?

Drilling the intake for some of above heaters would work but would be a major pain in the butt. I would remove the intake so I could clean everything up after cutting it. I would not risk drilling and tapping the intake that close to the valves while it's on the engine. It could probably be done though maybe stuff a rag down the intake before drilling and tapping.

-Avery

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05 KJ CRD mostly stock currently under the knife
05 KJ CRD mostly stock
18 Ram 3500 crewcab flatbed
kubota M6800


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