Fuel Injector
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Overview
CODE | REASON | EFFECT |
Fault Code: 758 PID: P129 SPN: 1349 FMI: 7/7 LAMP: Yellow SRT: |
Incorrect fueling was detected on the rear three cylinders. |
Engine will misfire. |
![]() Fuel Injector
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Circuit Description
The electronic control module (ECM) supplies voltage to open the fueling actuators for a short length of time. This allows a short pulse of fuel to flow to the injector. The injector then injects this fuel into the cylinder for combustion.
Component Location
The injectors are located in the cylinder head under the valve cover.
Shop Talk
The ECM measures the amount of fuel metered into each injector by using the rear fuel rail pressure sensor. If the ECM detects that no fuel is entering an injector, the fault code is activated.
Refer to Troubleshooting Fault Code t05-758.
Last Modified: 26-Oct-2010