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Code P 0751, what is it, why did it happen after installing 2800 stall TC and gears?
tc and gears....... must you remove the code for tc slippage so you don't get a code p 0175 . People say you should remove this code from the pcm so you don't get this code come up. Any ideas? They say this is from the tc slipping and causing the code to pop up. My superchips program I think did not take this into account, and this is likely why I am getting this code on the computer. Anyone have any thoughts or similar problems with their torque converter?
thanks mv99
Re: Code P 0175, must you remove the code for tc slippage so you don't get a code (MEDVETTE99)
I'm guessing you're referring to P0751, not P0175. P0751 isn't a slippage code, it's a shift solenoid valve performance code. The only true slip code is P1870. That said, if you look at the test criteria for the P0751 DTC in the service manual, you can see how it could be influenced by a high stall converter and its alteration of the relationships between engine speed, vehicle speed, and throttle position which get very loose at lower RPM where this test applies.
I've had this code tripped maybe 2-3 times in the last year and a half and don't plan to disable it. Easier to clear the code than think about it too hard.
Re: Code P 0175, must you remove the code for tc slippage so you don't get a code (ToplessTexan)
yes it's po751, thanks. Is it causing any damage to the car? Is this common in high stall tc cars? How do you clear the check engine light? iv'e done this before, and it came back 1 week later.
Re: Code P 0175, must you remove the code for tc slippage so you don't get a code (MEDVETTE99)
If the shift detection algos are getting tripped up by the weak relationships between RPM and vehicle speed down low, then there's likely no cause for alarm. It does command higher line pressure in response and that can be a little alarming, but it will return to normal if you clear the DTC. It's not unheard of but if you do a search for it you won't find tons of posts asking questions about it. There's several conditions that have to be meet so you really need to be able to trigger it at will in order to truly diagnose it.
Did it start happening right after the converter went in? Does it happen all the time now? In different parts of your driving routine or always in the same place? This is one of those that is difficult to repeat the conditions and make it occur on demand. If it seems to insist on coding you may have a real issue. You might consider trying dsomething simple like verifying the fluid level first.