Circuit Description
The injection pump delivers fuel to individual cylinders by opening and closing a solenoid control fuel valve. The PCM monitors the amount of time it takes for the fuel solenoid valve to physically close after commanded to close. Closure time out of range is seen as a fault. This response time is measured in milli seconds. This is a type D DTC.
Conditions for Setting the DTC
| • | Battery voltage greater than 10 volts and less than 16 volts. |
| • | Engine coolant temperature greater than -1°C (34°F). |
| • | ENGINE SPEED greater than 506 rpm. |
| • | Requested fuel rate is greater than 0.0 mm |
| • | Closure Time less than 2.5 ms. |
Action Taken When the DTC Sets
Possible poor performance
Conditions for Clearing the MIL/DTC
| • | A History DTC will clear when forty consecutive warm-up cycles that the diagnostic does not fail (coolant temperature has risen 5°C (40°F) from start up coolant temperature and engine coolant temperature exceeds 71°C (160°F) that same ignition cycle. |
| • | Use of a Scan tool |
Diagnostic Aids
A weak (mechanical failure) fuel solenoid will result in a DTC P1217. If DTC P1217 is set with any other DTCs, diagnose them first. If the vehicle is running close to the DTC setting closure time, vehicle should be checked during cold start ups and during hot conditions.
Test Description
Number(s) below refer to the Step number(s) on the Diagnostic Table.
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This Step determines if DTC 1217 is a hard failure or an intermittent.
-
This Step will determine if the solenoid is at fault, or if there is a problem with the PCM or wiring.
Step | Action | Value(s) | Yes | No |
1 |
Important: Before clearing DTCs use the scan tool Capture Info to record freeze frame and failure records for reference, as data will be lost when Clear Info function is used. Was the On-Board Diagnostic (OBD) System Check performed? | -- | ||
2 | Is DTC P0370 set? | -- | Go to DTC P0370 Timing Reference High Resolution System Performance | |
Is the scan tool display greater than the specified value? | 2.4 ms | |||
4 |
Is voltage between specified value? | 11 - 16V | ||
5 | DTC is intermittent. If no additional DTCs are stored, refer to Diagnostic Aids. If additional DTCs were stored refer to those DTC table(s) first. Are additional DTCs stored? | -- | Go to the Applicable DTC Table | -- |
Check the fuel solenoid driver ignition feed circuit for poor connections or aftermarket add-ons Notice: Connect any add-on electrically operated equipment to the vehicle's electrical system at the battery (power and ground) in order to prevent damage to the vehicle. .Was a repair performed? | -- | -- | ||
7 | Replace the Injection pump. Refer to Fuel Injection Pump Replacement . Important: If injection pump is faulty, the new injection pump must be timed. Refer to Checking/Adjust Injection Timing . Is the action complete? | -- | -- | |
8 |
Does the Scan Tool indicate that this diagnostic Ran and Passed? | -- | ||
9 | Using the Scan Tool, select Capture Info, Review Info. Are any DTCs displayed that have not been diagnosed? | -- | Go to the Applicable DTC Table | System OK |
