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Old 12-20-2011, 09:44 PM
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PCM tuning questions

I have a 2000 f350 4x4 with a 7.3 automatic. I just had new stage 2 single shot injectors, HPOP, and 38r turbo put in my truck. Im using a beans tuner and the truck is hard to start when its cold, doesnt feel like its got alot of power, romps when you first start it, and romps when you get off the gas when getting off highways or coming down from higher speeds. Also wont blow almost any smoke no matter what setting the chip is in.
-without the chip.. it starts alot easier, sounds better when driving, & has more power, but as soon as you go below 25mph it starts to romp/chatter; accelerating the slightest bit makes it stop.

-Ive plugged in my old tuner for the stock injectors into the truck; it adds HP, feels good, but has the same issues as without the tuner, just worse.

-with the beans tuner, the EGT stay low (never seen it get above 950). with the old one EGT is around 800 with daily driving.
I've had the chip reburned 3 different times to make sure it wasnt a faulty chip, so I know thats not the problem; also got new chip altogether instead of keeping same one.


Is there any way that the tune could be for a different PCM? I never gave my PCM # to the guy who tuned it, but he said all 2000's are the same? or do you have any idea what could be causing this?

Last edited by FL_Cracker; 12-20-2011 at 09:50 PM.
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Old 12-21-2011, 09:17 AM
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Did you have the tunes redone for the new injectors?
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Old 12-21-2011, 10:02 AM
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Yes, didn't have the tunes til after.
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Old 12-21-2011, 10:49 AM
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How many miles since the mods?
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Old 12-21-2011, 12:23 PM
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Around 6k. Hasn't gotten better or worse.
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Old 12-21-2011, 12:46 PM
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Gotta suspect the tuning then. Call whoever wrote your tunes. Or try someone else.
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Old 12-21-2011, 01:31 PM
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I had the tunes reburned 3 times on 2 chips and tried someone elses tunes that felt even worse. Do my problems sound like the tunes could have been written for the wrong PCM or maye the mechanic didn't put the right injectors.
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Old 12-21-2011, 03:02 PM
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Yes, both things are probable.

Edit: Also, unplug the ICP sensor and check the connector for oil
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Old 12-21-2011, 03:45 PM
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What would a truck do with stage 2 injectors and a stock tune? and what would a truck do with stock injectors with stage 2 tuning?
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Old 12-21-2011, 03:48 PM
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You won't have much power either way. It will run rough. Slow to accelerate.
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