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romping when hot

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Old Dec 8, 2013 | 09:44 PM
  #1  
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romping when hot

got a 2000 7.3 in the shop just finished a lot of work to it 8 new AC code injectors, bellowed up pipes, wicked wheel in turbo, fuel pressure spring mod, new high pressure oil hoses and cross over hose, 203 thermostat, glow plugs, wiring harnesses, new oil and filter, fuel bowl reseal. came in not starting without block heater, skipping and leaking at up pipes. now after all that work it romps when the temp gauge gets just off the cold mark and then gets worse the hotter it gets. cranks and idles prefect cold. and cranks back easy when hot. any ideas ?
 
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Old Dec 8, 2013 | 10:14 PM
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Out of curiousity, are you running those AC injectors on the stock calibration? If not, what tunes are you running and does the issue occur in all settings (assuming you have multiple calibration choices...)
 
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Old Dec 9, 2013 | 05:55 AM
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Originally Posted by Shake-N-Bake
Out of curiousity, are you running those AC injectors on the stock calibration?
Yeeeaaahhh.... I don't see a tuner in the list. I'm with Shake-N-Bake. ACs are a whole different design from the stock injectors - they need tuning to run correctly. Sooner is better than later... you're gunna run real hot.
 
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Old Dec 9, 2013 | 09:13 PM
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the truck all ready has bigger exhaust, and he had a chip on it be cause there is a hole in the back of the pcm and a position switch on the dash that is unhooked. it is a four position switch. he says that he had a local off road shop take the chip off and install a programmer. but he doesn't know what type it is and he still looking for the programmer. and he doesn't know what its set on.
 
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Old Dec 10, 2013 | 12:58 AM
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He needs the proper tunes that's for sure. I'd order a tuner for those sticks. Chances are what he was using isn't right.
 
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Old Dec 10, 2013 | 09:42 AM
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Originally Posted by IHdieselfan
the truck all ready has bigger exhaust, and he had a chip on it be cause there is a hole in the back of the pcm and a position switch on the dash that is unhooked. it is a four position switch. he says that he had a local off road shop take the chip off and install a programmer. but he doesn't know what type it is and he still looking for the programmer. and he doesn't know what its set on.
Sounds like you found your problem. I recommend you get a calibration that is compatible with your injectors and then go from there.
 
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Old Dec 10, 2013 | 11:14 AM
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where do you get that from. I'm kinda new to turning up the powerstrokes been working on them for years but mainly just repairs back to stock and some minor upgrades. I'm well versed in the IDIT performance side but this is the first guy who wanted me to turn his psd up. I have a sct tuner on my excursion would something like that work. or does it need to be custom programming.
 
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Old Dec 10, 2013 | 11:17 AM
  #8  
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I'm suggesting to him that he needs to add boost pyro trans gauge.
 
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Old Dec 10, 2013 | 11:25 AM
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Originally Posted by IHdieselfan
where do you get that from. I'm kinda new to turning up the powerstrokes been working on them for years but mainly just repairs back to stock and some minor upgrades. I'm well versed in the IDIT performance side but this is the first guy who wanted me to turn his psd up. I have a sct tuner on my excursion would something like that work. or does it need to be custom programming.
You are better off with custom programming since you switched from split shot to single shot injectors. You also increased the size of the injectors as well. Do you know what nozzle size you have with the new AC codes? Unless you specify something specific, then you may have received stock nozzle size but there are other sizes available. They usually are sold as 160/30, 160/80, 160/100 etc. The first number is the size of the injector in cc's per 1000 strokes and the second number is the percentage increase of nozzle opening size over stock. Once you get those two numbers, then most any tuner can help you out.

Most folks here use DP Tuners, Gearhead, PHP etc. There are quite a few choices. If you search some of the tuning threads then you can find out who many of the vendors are that offer the service.

 
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Old Dec 10, 2013 | 11:32 AM
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Originally Posted by IHdieselfan
I'm suggesting to him that he needs to add boost pyro trans gauge.
Good choices. I personally would rather have fuel pressure vs boost strictly for diagnostic purposes. If the owner tows heavy and has room for only three gauges then engine coolant and EGT are good choices and then get the Aeroforce Interceptor Scangauge for the third spot. It can accept two analog inputs so you can use one for fuel pressure and be golden. Then you will have other choices as well, such as trans temp, engine oil temp, ICP etc
 
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Old Dec 10, 2013 | 11:35 AM
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Originally Posted by IHdieselfan
I'm suggesting to him that he needs to add boost pyro trans gauge.
If he is already planning on purchasing tunes and gauges....

Then DP has a cool product called Infinity that you might want to look at. It uses a Dash Daq display and has the ability to run custom tunes.

I think PHP has something similar as well. I can't remember the name right now....


EDIT: Here are some links.
http://www.dp-tuner.com/featured-pro...reen-7-3l.html
http://www.gopowerhungry.com/_gryphon_cts_gas.shtml

It looks like PHP is discontinuing their product....Looks like the DP Infinity is your best choice because it's should be supported for quite a while. I've never used the Infinity nor do I know anyone who has but if I was going to design a dash mounted display that was able to function as gauges, run a custom calibration as well as include diagnostic tools then I'd start with the Dash Daq and build on that hardware. That one item could function as your custom tunes, gauges and a diagnostic scanner. Fair price when you think about everything that you get in my opinion...
 
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Old Dec 10, 2013 | 12:26 PM
  #12  
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they are just new injectors from alliant power from my local diesel shop
 
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Old Dec 10, 2013 | 12:35 PM
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Originally Posted by IHdieselfan
they are just new injectors from alliant power from my local diesel shop
Most likely have stock nozzles then. The numerical identifier for that part is 160/0
 
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Old Dec 10, 2013 | 01:11 PM
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Get the proper tune, it you will love it. And know your tuner will not work, it has to be for single shot injectors.
 
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Old Dec 10, 2013 | 03:38 PM
  #15  
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if he already has some kind of programing on there and if he can't find the programmer can we over write that or what can be done in that case. will he need a new pcm.
 
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