Quote:
Originally Posted by sunman
The emissions connection on the fuel tank sender is connected to the charcoal canister then to the purge solenoid then to throttle body vacuum port. To vent the tank. Check the line, is purge solenoid working?
You are pumping gas to the cap with return line also, that’s dangerous. Nobody does that.
Increase in elevation possibly makes problem worse.
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I don't know if this engine really has the full emissions, but if it does there is also usually a vacuum pump on or close to the charcoal canister. However, with an evap system the entire system should be running under NEGATIVE pressure. So if there is a vacuum line to the throttle body port check that line to see if it is making vacuum. Then work backwards.