wmi spraying at 20-60% only

[SneakerB]

ive been having this problem for awhile, sometime its goes away and sprays at 100 been doing some trouble shooting and have figured out that purging the line gets rid of it. when i purge it usually starts off slow without much power then after clicking the purge a couple time its will spray at 100%

what is causing this issue? as it seems to happen every day and i dont really want to have to purge daily.


Thanks!

[AWDGT2]

Check ground. Ensure there is good contact, no paint and good metal to metal contact. Most issues you are describing lean towards that. The next logical step would be the filter, it could be getting clogged.