ElantraClub will be closing soon.
ElantraClub - for all generations

Welcome Guest ( Log In | Register )

Amazon · Advance Auto · Newegg · Ebay 
 Forum Rules Overview
 
Reply to this topicStart new topic
> Elantra RD Purge solenoid and CCV specific conditions, Looking for the pre-conditions
Car guy
post Jan 8 2016, 05:42 PM
Post #1 | Print


Club Newbie
Group Icon
Group: Members
Posts: 5
Posts Per Day: 0.01
Thanks Received: 0
Trader Stats: 0 (0%)
Joined: 22-October 15
Member No.: 20,333


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.

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.

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 (would the ECU attempt to allow the test to run to completion) (would the ECU keep the CCV energized)?

Thanks.


--------------------

A proud member of the club.
Go to the top of the page
 
+Quote Post
equus
post Jan 9 2016, 05:26 PM
Post #2 | Print


Tesla proto P90D
Group Icon
Group: Professional
Posts: 2,113
Posts Per Day: 0.43
Thanks Received: 12
Trader Stats: 0 (0%)
Joined: 17-February 05
From: Republic of Khaalifhornia, USA
Member No.: 371
Mood: Thankful


QUOTE (Car guy @ Jan 8 2016, 02:42 PM) *
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.


--------------------

I thaw a putty tat..............I did..........I did.......
Go to the top of the page
 
+Quote Post
Car guy
post Jan 10 2016, 11:45 AM
Post #3 | Print


Club Newbie
Group Icon
Group: Members
Posts: 5
Posts Per Day: 0.01
Thanks Received: 0
Trader Stats: 0 (0%)
Joined: 22-October 15
Member No.: 20,333


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.


--------------------

A proud member of the club.
Go to the top of the page
 
+Quote Post
Car guy
post Jan 10 2016, 06:33 PM
Post #4 | Print


Club Newbie
Group Icon
Group: Members
Posts: 5
Posts Per Day: 0.01
Thanks Received: 0
Trader Stats: 0 (0%)
Joined: 22-October 15
Member No.: 20,333


Equus, I also sent you a PM on relateds.


--------------------

A proud member of the club.
Go to the top of the page
 
+Quote Post
equus
post Jan 10 2016, 07:43 PM
Post #5 | Print


Tesla proto P90D
Group Icon
Group: Professional
Posts: 2,113
Posts Per Day: 0.43
Thanks Received: 12
Trader Stats: 0 (0%)
Joined: 17-February 05
From: Republic of Khaalifhornia, USA
Member No.: 371
Mood: Thankful


Hi CarGuy, I would answer some of those questions IF you could tell me a reason why you need this info. Some of the answers I have to provide are proprietary information that I may not be able to provide. But, here are some answers that I CAN provide biggrin.gif
Reason you saw 4.2 VDC at the signal return or the GRD wire from ECU with KOEO and connector unplugged is due to the fact that ECU sends out that voltage to verify that ALL electrical connectors are plugged into their respective devices that it monitors.
Reason why you did not hear it click after the first time is the ECU passed a Integrity Check to confirm that the current consumption meets the model designes inside the program.
Test is ONLY run once every drive cycle and ONLY if there are NO other Emission related DTC's set.
Also the Coolant Temp MUSt rise by a min of 40F from start up temp. IF the ECT is registering greater than a "possible" 40F increase it then will wait for ECT to show > than 165F.


--------------------

I thaw a putty tat..............I did..........I did.......
Go to the top of the page
 
+Quote Post
Car guy
post Jan 10 2016, 09:52 PM
Post #6 | Print


Club Newbie
Group Icon
Group: Members
Posts: 5
Posts Per Day: 0.01
Thanks Received: 0
Trader Stats: 0 (0%)
Joined: 22-October 15
Member No.: 20,333


QUOTE (equus @ Jan 10 2016, 07:43 PM) *
Hi CarGuy, I would answer some of those questions IF you could tell me a reason why you need this info. Some of the answers I have to provide are proprietary information that I may not be able to provide. But, here are some answers that I CAN provide biggrin.gif
Reason you saw 4.2 VDC at the signal return or the GRD wire from ECU with KOEO and connector unplugged is due to the fact that ECU sends out that voltage to verify that ALL electrical connectors are plugged into their respective devices that it monitors.
Reason why you did not hear it click after the first time is the ECU passed a Integrity Check to confirm that the current consumption meets the model designes inside the program.
Test is ONLY run once every drive cycle and ONLY if there are NO other Emission related DTC's set.
Also the Coolant Temp MUSt rise by a min of 40F from start up temp. IF the ECT is registering greater than a "possible" 40F increase it then will wait for ECT to show > than 165F.


Again, thank you, Equus. I'm very glad to have 'these hangouts' resolved.

On your question, I'm restoring the car to its original OEM status. It's just mine - just my personal car. Thus far, I have replaced more than 200 parts - all new Hyundai parts. In doing so, I always measure the parts I'm removing as well as the new parts. It's just my process. Old car guy in me. When I was restoring the vapor system parts, I had seen a crimp in the wire loom (that holds the 2 CCV wires) (it was crushed actually) at the TOP of the canister's bottom plastic cover/housing, about 1' below from where the loom wends down from the driver's rear wheel well. Thus, when I saw the loom crushed, I checked the CCV wires' V, with the harness then disconnected (from the CCV). I subsequently looked inside the 2" of the loom where it was crushed, and the wires were fine. Only the loom had been crushed. I re-positioned the loom at a more advantageous opening point at the top outer-most side of the canister's bottom plastic cover - and made sure things were no longer crushed. This was the first time the canister had ever been lowered (let alone replaced). So, the wire loom had been crushed for a long time. Naturally, when I saw Vs other than what I expected, I was just seeking to understand and to ensure there was no problem. That was it.

Equus, I would still like to understand why I saw the bouncing V between high 1.x and low 3.x once I had started the car and re-measured (harness still disconnected) (and not the same 4.21 V when Key was ON and car was OFF)? Can you explain that part to me?

And, I would still like to understand why (once everything was back together and re-connected) I only felt the CCV click a SINGLE time. Why would I not have felt it 'click off'? Even after still holding it after the car was turned off? The main relay had been turned off for several seconds (after the car had been turned off), and I was till holding the CCV in situ, and I never felt 'a second (de-energizing) click.' Are you saying it energized and de-energized so fast (as part of the test) that what I felt was actually the plunger moving AND releasing - that I actually felt BOTH but it was so fast I didn't realize I was feeling both?

And, does it make sense to you that it performed the test (clicked) so early either during start or just after (within seconds) - before the car would have finished reaching operating temp?

Finally, still would like to know when the purge solenoid typically opens to release the canister's vapors - separate from leak detection processing. Ever 'at Idle' (when the car is sitting at a light, for example)? Or only under throttle? And, if under throttle, what would be the MPH ranges? And, what would be the RPM ranges, if they apply?

Thanks.

P.S. I can send you pics of the crushed loom and the restoration work thus far, if you're interested.


--------------------

A proud member of the club.
Go to the top of the page
 
+Quote Post
Reply to this topicStart new topic
2 user(s) are reading this topic (2 guests and 0 anonymous Users)
0 Members:


Collapse

> Similar Topics

  Topic Replies Topic Starter Views Last Action
No New Posts Elantra Sport review
4 elantragt 4,013 21st June 2017 - 05:26 PM
Last post by: elantragt
No New Posts Elantra GLS 2016 Diesel HID to Xenon
Elantra GLS 2016 Diesel HID to Xenon
0 zipzip 339 13th November 2016 - 05:56 PM
Last post by: zipzip
No New Posts Elantra GT TIRES
215-45-17 TIRES
0 i30al 453 31st July 2016 - 10:11 PM
Last post by: i30al
No New Posts Elantra HP boost
Any suggestions on hp boost for elantra?
7 Spiritblade 1,304 2nd March 2016 - 04:04 PM
Last post by: Morsel
No New Posts Elantra Turbo Pistons and Rods
Performance
1 TSmooth8403 888 31st January 2016 - 11:30 PM
Last post by: J2/RD



 



RSS 2017 The Hyundai Elantra Club    
Time is now: 22nd June 2018 - 01:36 PM
Elantra Club is not affiliated in any way with Hyundai Motor America