Was looking to replace some coils, even though no code shows for coils. While at it, iI checked the SES. Service codes were 1132 and 1152 any suggestions as to where i should start if it cant be pin pointed? System is rich. Thanks!

 

The rich codes are for both banks.
Only cause for this is to much fuel.
First check for fuel in the vacuum line from the fuel regulator.
This would indicate the regulator is faulty.
If no fuel is found, check for excessive fuel pressure. This would tend to meter to much fuel.
The other source is leaking fuel injectors. This would have to happen on both banks and be cylinder specific
I would not be replacing the coils hoping to clear a trouble not attributed to them unless you just want to change them on general principle or for a specific
drivability reason.
Good luck.

 

Will definitely look this over. Thank you! Oh, We were going to change some of the coils because a ford tech friend of ours told us a couple were on their way. this was A LONG time ago. We were going to test them ourselves, before replacing them. truck has about 230k miles with same coils when the truck was Purchased with about 60kmiles. I drove the truck, after years of not driving it, and it definitely feels sluggish with a rough idle. When AC is turned on, the truck gets rough and sort of shakes.