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Hello, and welcome to JA!!!! there are a couple of things to look at here. i have seen a few of these trucks have a problem with the wiring harness rubbing thru to the FCIM. on the front of the right valve cover is the FCIM, the wiring harness from the fcim will tend short out against the bracket on front of the valve cover. here is a picture of the FCIM. also I am going to make another post for some service info on these codes.
Intermittent injector driver codes P0201 through P0208.
. If the cause of the concern is not found through normal diagnostics, check for loose or corroded wire connections at the injector. The engine valve cover must be removed to perform this check.
Yes that is correct. but if the codes 202, 203, 205 and 208 are set. the diag flow chart states to diag the injector codes first. if any of the wires are rubbed thru to the FCIM these codes can set.
The fuel injection control module (FICM) supplies high voltage to each fuel injector on the ignition voltage circuits. The FICM energizes each fuel injector by grounding the command circuit between the FICM and the fuel injector. The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs P0201, P0204, P0206, P0207 will set, along with DTC P2146. If a circuit condition is detected on a fuel injector circuit for cylinders 2, 3, 5, or 8, DTCs P0202, P0203, P0205, P0208 will set, along with DTC P2149.
Ok, both of these codes refer to a no start condition. the code P0611 pretty much states a bad FCIM.
DTC P0611 Circuit Description
The fuel injection control module (FICM) has the ability to perform internal circuit checks on the FICM microprocessor, status of the monitoring module, and status of the FICM A/D conversion module. If the FICM senses a problem in the FICM circuits, the FICM will send an error message to the engine control module (ECM). If this condition exists, DTC P0611 will set.
The FICM detects an internal circuit fault.
Did you perform the Diagnostic System Check-Engine Controls?
Go to Step 2
Go to Diagnostic System Check - Engine Controls
Replace the fuel injection control module. Refer to Fuel Injector Control Module Replacement .
Did you complete the replacement?
Go to Step 3
Does the DTC run and pass?
Go to Step 4
Go to Step 1
With a scan tool, observe the stored information, Capture Info.
Does the scan tool display any DTCs that you have not diagnosed?
Go to Diagnostic Trouble Code (DTC) List
nothing special here. here is the replacement instructions.
Fuel Injector Control Module Replacement
Important: Do not break off the tab on the electrical connector.
Important: Do not knock off the insulators when installing the fuel injector control module to the bracket.
Tighten Tighten the bolts to 25 N·m (18 lb ft).
Tighten Tighten the bolts to 35 N·m (26 lb ft).
Tighten Tighten the bolt to 17 N·m (13 lb ft).