Quote:
Originally Posted by 80stech
maybe the leak detection valve is not spool is not fully going into the run position(against spring).
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I'm going to rule this one out because the way the DMTL works is it monitors motor current while pumping through the reference orifice and then fully closed, comparing the result. In INPA, you can see the motor current at each stage of the test (reference, 1mm leak test, .5mm leak test). In my case, the motor currents all make sense and are within acceptable range - immediately high at closed, lower at reference measurement, and gradually rising to match the closed rate during the 1mm and .5mm test cycles (gradually rising as the fuel tank and associated EVAP lines pressurize).
I know the path from the purge valve through the canister and out the DMTL pump filter is not blocked as I was able to blow lightly compressed air with smoke through it. What I don't know is if it's partially restricted. I think the culprit has to be either the canister or DMTL filter. I was hoping to avoid pulling the fender liner because I have to order more of those plastic rivets to reinstall the trim, but it may come to that.
Haven't had a chance to try and measure vacuum/flow between my two X5's to compare, and I think that will shed some light.
01-13-2019, 02:38 PM
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