carmudgeons.com  

Go Back   carmudgeons.com > Automotive Forums > Technical Superiority

Reply
 
Thread Tools Display Modes
Old 10-11-2018, 10:04 AM   #11
clyde
Chief title editor
 
clyde's Avatar
 
Join Date: Oct 2003
Posts: 22,850
Quote:
Originally Posted by JST View Post
JFC, I just looked up "drive cycle" and that's nuts.
I posted about the Jaguar's drive cycle a couple years ago. Your response was "wtf?" and Bren dittoed.

http://forums.carmudgeons.com/showpo...&postcount=107

Quote:
They can't just use a sniffer instead, like they used to do?
Sniffers only sniff at idle, so too easy to fool.
__________________
OH NOES!!!!!1 MY CAR HAS T3H UND3R5T33R5555!!!!!!1oneone!!!!11

Team WTF?!
What are you gonna do?
clyde is offline   Reply With Quote
Old 10-11-2018, 10:06 AM   #12
rumatt
Mugwump
 
rumatt's Avatar
 
Join Date: Oct 2003
Carmudgeonly Ride: E46 330i, E91 325xi, Chevy Colorado, Cayman R
Location: NY
Posts: 16,530
Quote:
Originally Posted by wdc330i View Post
I predict you will sell this car before winter takes hold.


I'll add a dollar to that bet.
rumatt is offline   Reply With Quote
Old 10-11-2018, 11:43 AM   #13
Nick M3
Old Fart
 
Nick M3's Avatar
 
Join Date: Oct 2003
Location: Bethesda, MD
Posts: 8,751
Quote:
Originally Posted by equ View Post
So while I had the hood up yesterday a neighbor came by and inquired. In a few minutes, I had a obdii scanner to borrow, a very basic one. I could see 3-4 codes as incomplete. After I was done with flashing to Stage 0 (but not removing MHD completely), I saw that MHD flashing app itself allows me to see the codes... So yeah, it'll be good to know that it is "ready" before I go and fail again. I hope the drive cycle is as normal as you make it to be; there are stories on the forums about people just not being able to get to the "ready" state.
The drive cycle lets you set readiness RIGHT NOW.
__________________
2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3
1999 323i GTS2
1995 M3 S50B32, S6S420G, 3.91
1990 325is
1989 M3

Hers:
1988 325iX
1996 911 Turbo


Nick M3 is offline   Reply With Quote
Old 10-11-2018, 08:45 PM   #14
Terry Kennedy
There and back again
 
Terry Kennedy's Avatar
 
Join Date: Oct 2003
Carmudgeonly Ride: 2003 BMW 325xiT; looking for a new fun car
Location: New York
Posts: 2,545
Quote:
Originally Posted by clyde View Post
Sniffers only sniff at idle, so too easy to fool.
NJ no longer performs (or even has) testing for anything other than OBDII ready / fail status. Pre-OBDII cars no longer need to be inspected. You can have a broken windshield, no headlights or muffler, and steering pulling violently to one side and you'll pass in NJ as long as your OBDII status is good. Oh, and inspection is free at state-run facilities.

I'm just amazed that nobody has come up with a Raspberry Pi / Arduino / etc. OBDII emulator that just goes "Nope, nothing to see here. Move along!" to pass inspection.
Terry Kennedy is offline   Reply With Quote
Old 10-12-2018, 09:04 AM   #15
equ
Alphanumeric
 
equ's Avatar
 
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 535i, macanurbo
Posts: 7,707
Passed. I did the drive cycle at 230am last night, it was kinda fun in a Zen way.

EVAP never became ready, even after three bouts of idling. Perhaps, the tank starting out at 1/4 was not enough. The less official more paranoid versions say you need between 1/4 to 3/4's.

EGR reset only about 20 miles from home, and again going above and beyond the official to do. I decelerated (a second time) from about 50 only downshifting 5 - 4 - 3 - 2 - 1 (rev-matched) and hit the brakes only at about 3mph and that's either what EGR needed or it was happenstance.

Happy that NJ lets you pass with one Incomplete.

Interestingly, the stock car sounded different, idled a bit worse but did not feel appreciably slower than my "tune". I guess it's a mild one. Perhaps when I put it back on it'll be more noticeable. I was also driving beyond granny to achieve the cycle.
equ is offline   Reply With Quote
Old 10-12-2018, 09:12 AM   #16
John V
No more BMWs
 
John V's Avatar
 
Join Date: Apr 2005
Carmudgeonly Ride: 987S, Ram, MS3, CX-5, RX-8
Location: Glenwood, MD
Posts: 12,348
Canned tunes are almost universally terrible. A decent remote tune by a competent tuner will cost roughly the same and be better in every way (driveability, performance, safety margin).
John V is offline   Reply With Quote
Old 10-12-2018, 09:39 AM   #17
equ
Alphanumeric
 
equ's Avatar
 
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 535i, macanurbo
Posts: 7,707
The tune is far from terrible for my non-competitive purposes, I don't want to spend more than $350. I like that it has a slick app so I can flash back and forth. This version that I'm going to put on can be told that cats etc are stock so it should not mess with these codes again... While I didn't mind doing one, I don't look forward to another drive cycle.
equ is offline   Reply With Quote
Old 10-12-2018, 10:10 AM   #18
Nick M3
Old Fart
 
Nick M3's Avatar
 
Join Date: Oct 2003
Location: Bethesda, MD
Posts: 8,751
I will say that I *hate* the drivability of the MHD tune on Mike's car. The bigger the tune, the worse it gets.
__________________
2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3
1999 323i GTS2
1995 M3 S50B32, S6S420G, 3.91
1990 325is
1989 M3

Hers:
1988 325iX
1996 911 Turbo


Nick M3 is offline   Reply With Quote
Old 10-12-2018, 10:40 AM   #19
equ
Alphanumeric
 
equ's Avatar
 
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 535i, macanurbo
Posts: 7,707
Quote:
Originally Posted by rumatt View Post


I'll add a dollar to that bet.
Am I allowed in on this game?
equ is offline   Reply With Quote
Old 10-12-2018, 10:41 AM   #20
equ
Alphanumeric
 
equ's Avatar
 
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 535i, macanurbo
Posts: 7,707
Quote:
Originally Posted by Nick M3 View Post
I will say that I *hate* the drivability of the MHD tune on Mike's car. The bigger the tune, the worse it gets.
On what car? What state of tune?

I might not be a racer or builder but I do care a lot about drivability and the MHD had zero such issues on my 535i. Perhaps not enough gains, but that's ok too. I will see after I reflash.
equ is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Adventures in car inspection JST Car Talk 49 02-07-2015 05:35 PM
Low-down on Inspection II? lupinsea Car Talk 43 10-17-2006 04:52 PM
Inspection II zach Car Talk 4 07-13-2005 01:46 AM
What happens if I skip Inspection II? zach Car Talk 9 10-16-2003 08:15 PM


All times are GMT -4. The time now is 10:18 PM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Forums 2003-2008, 'Mudgeon Enterprises - Site hosting by AYN & Associates, LLC