Table of Contents
How do I know if my Duramax injectors are bad?
There is a multitude of symptoms your truck will experience if the injectors are going bad. One of the first signs we see are excessive smoke/haze. You will notice your truck billowing out a little more smoke than usual or hazing at idle. Another issue you may notice is high EGTs.
How do you know if a spider injector is bad?
What are the Signs of a Bad Fuel Injector?
- Misfires due to a shortage of fuel – Misfires are noticeable events that occur when the engine is running that are often detected by a difference in performance or a subtle popping sound.
- Rough idling – You may feel like the engine is going to stall when you stop.
How do I know if my DSP5 switch is working?
DSP5 Trouble Shooting
- To verify that your DSP5 switch is working turn your key to the run position (truck can be running).
- Plug the SPADE into your truck using the OBD cable.
- Select Scan Tool and hit OK.
- Choose select PIDs and hit OK.
How is fuel pressure measured on a Duramax LML?
This one stalled while driving, and will not build enough fuel pressure to be measured by the Fuel Pressure Sensor. The priming pump will build pressure, but the pressure quickly bleeds off. It pulls 2 inHg while cranking.
What is the code on the Duramax fuel injector?
Low and behold, the P1249 had returned as it had numerous times before. But the only code displayed was a P0205, which indicated a circuit fault on #5 fuel injector. Working quickly before the cylinder heads warmed up, we removed the FICM connectors and repeated the pin test.
Are there any problems with the LML injectors?
Received a letter last week that states they have been having problems with the injectors on the LML’s and have extended my warranty to 10 years from date of purchase or 193,000 KM’s. When I can I’ll scan the document, something about them getting stuck closed.
How is resistance measured on a Duramax injector?
Since .3 ohms is a very small resistance, the ohmmeter leads must be clean and the meter must be perfectly “zeroed” by crossing the leads and pushing the “relative” button. If the ohmmeter doesn’t have the “rel” feature, jot down the leads’ resistance and subtract that from the total reading when measuring circuit resistance.