Where are the fuel injectors located in a GM engine?
In the 4.8L, 5.3L, 6.0L engines, GM has done away with this type of fuel system and uses 8 seperate fuel injectors placed on a fuel rail on the outside of the plenum. These fuel injectors can get dirty (internally) and/or clogged. When this happens, the fuel injectors will spray fuel in a jet instead of a fine atomized mist and/or no fuel at all.
How are the injectors assigned in a General Motors PCM?
EFILive reveals that General Motors also changed the injection bank assignments table values to follow the wire harness fuel injector assignments. The PCM must be calibrated to know which injectors are assigned to bank 1 (cylinders 1, 3, 5, 7) and bank 2 (cylinders 2, 4, 6, 8) so that fuel trims are applied to the proper bank of cylinders.
What is the firing order for a fuel injector?
This firing order is 1-8-4-3-6- 5-7-2. Just as with the LS1 example above, you see that the fuel injector at cylinder 1 is represented as Injector A and along the engine firing order through cylinder 8 represented by Injector H. Once again, all odd injectors are assigned to bank 1, and all even injectors are assigned to bank 2.
Is there a 10% off fuel injector code?
10% OFF $75. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only Stepping on the gas pedal and accelerating your vehicle is awe-inspiring, unless you’re having problems with your fuel injector. Your fuel injector is the main gas delivery system utilized in automotive engines, but if it’s defective or clogged, your ride can have problems starting.
Why is my GMC cylinder 4 misfire detected?
In Spark Ignition Direct Injection (SIDI) system applications, if a fuel injector fault DTC is set during a misfire event, the ECM will not re-enable the injector. Need more information on how to fix the P0304 GMC code?
What does the p0304 code on a GMC cylinder 4 mean?
Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring.
How to troubleshoot a GM 4.8L 5.3L truck?
The most logical starting point, when troubleshooting a misfire on your 4.8L, 5.3L or 6.0L pickup, van or SUV is testing the COP coils for spark. Why? Because a failed COP coil is usually the reason behind the misfire in the majority of cases. Here are my specific recommendations: Check for misfire codes with a scan tool first .