When was the last time I cleaned my Def injector?
When was the last time I cleaned my Def injector?
I cleaned my injector last July 2017 and just opened it up again in June 2018 and it was caked in crystals! The injectors were still visible, but there was at least 4-5 mm of white crystals starting to plug up the hole into the exhaust chamber.
Why does my Def injector keep clogging up?
Gene I got a P20E9 code which turned out to be over pressurized def pump which turned out to be a clogged def injector and I believe the def injector is actually clogging up from the heat in the scr is drying out the def fluid in the tip of the injector which basically seals the ports off .
How does urea get out of a Def injector?
Therefore urea cannot come out of solution in the injector passages, except in extreme cold. Once DEF leaves the injector, exhaust heat will evaporate some of the water away and precipitate urea around the nozzle, which is what we see. I would also guess that any urea crystals that were in the direct path of the injected DEF would be re-dissolved.
How to ensure fuel injectors are receiving the correct range?
Step 1: Turn the car on. Turn the key to the second (ON) position for this test. You want battery power flowing, but don’t want the engine running. Step 2: Set up DVOM to measure DC voltage. Use the lowest range possible if the meter doesn’t auto range.
What does it mean when a fuel injector meter reads infinite resistance?
Probe the injector electrical terminals—polarity doesn’t matter. A resistance reading other than the specified in your service manual means you need to replace the injector. For example: If your meter reads infinite resistance, it means the coil in the injector is opened.
I cleaned my injector last July 2017 and just opened it up again in June 2018 and it was caked in crystals! The injectors were still visible, but there was at least 4-5 mm of white crystals starting to plug up the hole into the exhaust chamber.
Gene I got a P20E9 code which turned out to be over pressurized def pump which turned out to be a clogged def injector and I believe the def injector is actually clogging up from the heat in the scr is drying out the def fluid in the tip of the injector which basically seals the ports off .
