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Discussion Starter #1
Would a 302 and 351 PCM show the same numbers on the case? I have a PCM out of my truck (302 Aod) and one I bought from a 351 c6 and he have the same part numbers on them is this normal?
 

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Discussion Starter #3
This is the original from my truck 302 aod


This is the one thats supposed to be 351 c6


Is there anyway to verify them? i am having issues with a shady mechanic thay was putting a 351 in my truck for me and wouldnt use the above pcm used his own from a 351 e4od but now i have check engine light on all the time
 

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looks like the calibration codes are different. ford used the same pcm in alot of vehicles and just programed them for different setups.
 

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This is the original from my truck 302 aod


This is the one thats supposed to be 351 c6


Is there anyway to verify them? i am having issues with a shady mechanic thay was putting a 351 in my truck for me and wouldnt use the above pcm used his own from a 351 e4od but now i have check engine light on all the time
The new one looks to be for an 87-89 Bronco F150 5.0L. and the hardware code SD20B is the same on both. What trans it's programed for I can't tell.
 

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There are a few settings that would be different from a 302 to 351w EEC.

Many people have swapped them back and forth without much issue. As long as you get one with similar settings(speed density, mass air, trans controller, etc) it should run ok. A few things will be off, like the way the eec calculates load...

if your check engine light is on, pull codes and see what it has logged.
 

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This is the original from my truck 302 aod

Is there anyway to verify them? i am having issues with a shady mechanic thay was putting a 351 in my truck for me and wouldnt use the above pcm used his own from a 351 e4od but now i have check engine light on all the time
Well the computer is expecting to see sensors and actuators from a auto transmission and its not. That's why the check engine light is on. Unless you fool the computer into thinking the transmission is always in neutral that CEL is gonna stay on. Your best off using a EEC meant for an AOD.

*edit*
Found this. FFI is down and thats where i would usually get his info from.

8CB 5.0 Bronco, F-x50 E-x50 SD-Bank
8PU 5.0 Bronco, F-x50 E-x50 SD-Bank
8PV 5.0 Bronco, F-x50 E-x50 SD-Bank / AOD
8PZ 5.0 Bronco, F-x50 E-x50 SD-Bank / AOD
8TP 5.0 Bronco, F-x50 E-x50 SD-Bank / Manual
C2M1 5.0 Bronco, F-x50 E-x50
C9Z 5.0 Bronco, F-x50 E-x50 SD-Bank / AOD
E1A1 5.0 Bronco, F-x50 E-x50 SD-Bank / E4OD
GLO2 5.0 Bronco, F-x50 E-x50 SD-Bank / 4R70W
GT 5.0 Bronco, F-x50 E-x50 SD-Bank / AOD
L0U 5.0 Bronco, F-x50 E-x50 SD-Bank / Manual
L12D 5.0 Bronco, F-x50 E-x50
RG 5.0 Bronco, F-x50 E-x50 SD-Bank / AOD
RRS0 5.0 96 Bronco, F-x50 E-x50 OBD-II / MAF / 4R70W / TFI
RZ 5.0 Bronco, F-x50 E-x50 SD-Bank / AOD
T2T 5.0 Bronco, F-x50 E-x50 SD-Bank
U2D 5.0 Bronco, F-x50 E-x50 SD-Bank / AOD
W2J 5.0 Bronco, F-x50 E-x50 SD-Bank
HUG2 5.0 Bronco, F-x50 E-x50 MAF / E4OD (see note 1)
VEX1 5.0 Bronco, F-x50 E-x50 MAF / E4OD / F5TF-12A650-HB
WAY1 5.0 Bronco, F-x50 E-x50 MAF / E4OD / F5TF-12A650-JB
So that second one with the C9Z on it is for a 302 5.0.

The other one is the 351 c6 eec. Its not listed but i found this:
http://www.ford-trucks.com/forums/685954-horrid-mpg.html
read to page 2. the van came with a 351/c6 and his eec had the same calibration code as the first one.
 

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Discussion Starter #9
Hey changed out the PCM and the truck runs great, still got a check engine light on but I'll pull codes this weekend holding its something simple thanks for all the help guys
 
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