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Who has had to replace a PCM

 
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  #31 (permalink)  
Old 24 Oct 2017, 09:41 pm
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Default Re: Who has had to replace a PCM

My ECM has been replaced a few months before I purchase my 05 Turbo lite

My issue is when cold (open mode) it has a flat spot above 1500-2000RPM
just before it goes into Close loop
about 5 minutes after start in cooler temp/weather
it is a constant issues that can be replicated without any codes.

.............Only codes I have are the O2 senor codes
and I believe that cause By my Bosch sensors
I have renewed the ground s for ECM and sensor
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  #32 (permalink)  
Old 24 Oct 2017, 11:21 pm
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Default Re: Who has had to replace a PCM

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Originally Posted by Luna_Llena View Post
Upon installing the new PCM I now have codes P0891 and P0700.
Any help?
You have these codes as well as the previous codes? Or you only have these new codes?

Unfortunately, it has been documented many times on this forum, that the "refurbishers" do not seem to believe the pcm is defective when a customer returns one, and it appears that it is put back into circulation. Most customers of these places that post here have reported having to send back and try another 2, 3, 4, or more times before finally getting a good one.

If the previous codes are gone and suddenly you have TCM codes popping up, I would suspect the replacement pcm. Do you still have the old one you can put back in? If so, put it back in and see if those two trans codes pop up again.
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