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ElantraClub - For Elantra Owners and Enthusiasts _ Elantra General Discussions _ Elantra RD Purge solenoid and CCV specific conditions

Posted by: Car guy Jan 10 2016, 11:45 AM

Hey, Equus, huge thanks on this! I had asked on other forums, and, well, let's just say, got no where (and that's gracious) or heard nothing.

Couple follow-up questions.

Didn't quite follow "KOEO NO." Were you just saying 'car had to be running' - in other words, the test will NOT run with just key in ON and Eng OFF?

Does a warm-up of 40' beyond start CTS need to occur, in addition to reaching 165F, each time?

Does the ECU perform the testing 'as soon as' the conditions are met?
And, just 'once per drive cycle'?
Or, would there be occasions where the ECU will perform the test 'multiple times per drive cycle.'?

Also, have a couple purge sol questions too. Will get back with you on those.

Thanks for this!

Original:
When - under WHAT SPECIFIC CONDITIONS - does the Elantra RD open the purge solenoid for vapor release? I'm looking for the condition-satisfying sensor and actuator states ... during ON/Running. ECT > 165F, Engine Running, O2 monitor passed, Misfire passed. KOEO NO. THREE Drive Cycles must be done ad successful before Evap Test is validated.

When - under WHAT SPECIFIC CONDITIONS - does the Elantra RD close the CCV? I'm looking for the condition-satisfying sensor and actuator states ... during ON/Running ... and during or just after Start. Same as Above, Vehicle Speed >5MPH and < 45MPH and NO WOT condition. 3 Drive Cycles must be successful before Evap Test is validated.

Finally, IF the CCV was closed (energized) (leak testing underway, e.g.,) at the time the car was turned off ... AND the ignition switch was then immediately turned back to ON (but not running) BEFORE the Main ECU Relay turned off ... would the CCV remain closed or not {NO}(would the ECU attempt to allow the test to run to completion) {NO} (would the ECU keep the CCV energized)? NO, ECU will not complete test till Three Complete Drive Cycles are done and all were successful.

Thanks.

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