Proper diagnosis, $20 and no parts cannon! This makes me smile, congratulations.

Besides getting you fixed up now I completely understand the evap purge valve operation.

Good work,

George

 

I think that there’s two ways that the charcoal canister can become so saturated that it affects the running of the vehicle. The first is over filling the gas tank which we’ve discussed. The second would be a poorly functioning purge operation due to the purge valve not opening completely, restrictions in the lines, restrictions in the canister, the vent solenoid, etc. I have experienced the overfilled gas tank problem but not my second theory. After seeing how aggressively the system purges at highway speed‘s I’m thinking that overtime a compromise pursed circuit might also cause this problem.

George

 

I updated post #69 where I summarized purge valve operation after a three hour highway cruise. That concludes my purge valve measurements.


George