Subject	This was supposed to be...
Posted by	xpwarrior on April 20, 2010 at 8:52 PM
	This message has been viewed 158 times.
In Reply To	Interesting , I must be thinking too new ;) posted by Spddracer on April 20, 2010 at 08:14 PM
Message	one of the reasons Nissan dropped the VTC when they had to go OBDII is 96. The computer needed to be able to not only engage the variable timing but control it or at least monitor it through the advance range and they weren't set up for that. Since it was the last production year they just did without it.
Follow Ups	What controls the amount of VTC timing advance? - Zarcasm(Hfd, CT) 18:13:19 04/20/10 IIRC VTC solonoids are duty cycled - Spddracer 19:44:17 04/20/10 I believe its just off of oil pressure. - Machtavian 20:00:06 04/20/10 I think you'll find it engages above idle... - zx299 20:12:50 04/20/10 Thats what I said. (n/m) - Machtavian 20:51:31 04/20/10 Where did you come up with the 2,500 rpm number? - Zarcasm(Hfd, CT) 21:20:16 04/20/10 That's where Greg D. sets them to come on if my memory - Machtavian 21:29:43 04/20/10 nope, try again (n/m) - Seb@Specialty-Z 23:32:10 04/20/10 My understanding of the VTC system..... - zx299 19:54:48 04/20/10 They are either on or off depending on engine load. - Ash's Z 19:55:30 04/20/10 Interesting , I must be thinking too new ;) - Spddracer 20:14:36 04/20/10 This was supposed to be... - xpwarrior 20:52:16 04/20/10 Thanks Ash. Ever heard of a VTC acting lazy and sluggish? - Zarcasm(Hfd, CT) 21:12:02 04/20/10 I have a hard time visualizing the VTC mechanism being - Ash's Z 07:36:11 04/21/10 Does the a/f schedule directly depend on VTC advance? - Zarcasm(Hfd, CT) 19:02:23 04/21/10 It's a simple on/off mechanism with the control variables - LitlElvis 07:04:52 04/21/10 is this the reason for the caps on the back of them melting? - LJZTT 15:14:08 04/21/10 No relationship whatsoever - LitlElvis 16:22:24 04/21/10 Thanks LitlElvis - Zarcasm(Hfd, CT) 19:12:56 04/21/10 My guess is the closed loop a/f adjustments do not base - LitlElvis 23:08:42 04/21/10 I recently used ATF to clean out the oil - Zarcasm(Hfd, CT) 20:10:20 04/22/10
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