260e emission fail
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 35
Likes: 0
From: Portland OR
89 260, 08 DRZ400SM
260e emission fail
Hey, im trying to get my 89 260e to pass emissions so far i have done is, cap, rotor, plugs, thermostat, oil change and i just ordered a 02 sensor. Just yesterday i took it deq, and it failed at idle is was at 380, and when i had it revved at 2500 it was at 280. I need to have my Micro Carbons at 220 at idle, and at rev. Does any one have tricks of the trade that will help me pass emission, any help would be very appreciated thanks
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 35
Likes: 0
From: Portland OR
89 260, 08 DRZ400SM
Super Member
Joined: Dec 2009
Posts: 541
Likes: 22
From: USA
10 speed bicycle
It is basically the air fuel ratio, also known as, on/off ratio. It can be checked with a lambda meter.
http://www.technictool.com/lambda-resistorbox.htm
http://www.technictool.com/lambda-resistorbox.htm
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 35
Likes: 0
From: Portland OR
89 260, 08 DRZ400SM
ha ha the cat i have, they told me it is a lifetime one ha ha guess they lied. lol yea i will try the temp sensor after i replace the o2 sensor thanks for the help guys
Trending Topics
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
MBWorld Fanatic!
Joined: Apr 2005
Posts: 2,849
Likes: 3
From: Long Beach, Ca
lots of cars
Naw, I never change the cat on my 86 and it passed. I always ran a o2 sensor from a 1990 mustang 5.0 with manual transmission. Another trick was to put 1/4 tank of premium fuel and add two bottles of iso-heet. Make sure you drive the car 30 min before you do the smog test and dont let the cat cool down. My w203 and my w202 pass smog without breaking a sweat now. I just feel lame not working on my cars anymore since they don't really need anything other than an oil change.
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 35
Likes: 0
From: Portland OR
89 260, 08 DRZ400SM
ha ha ok so i replace the o2 sensor, readings are a lot better, 308 at idle and 245 revved. I know what talking about now, the lamda, my girlfriends dad happenss to have one he adjusted it awhile back, but that was with the old o2 sensor he said it was reading slow at idle and adjusted it but it was just giving us bad readings, im gonna have him adjust it again at his shop and hopefully that will do the trick if not gonna get me some of the iso heet, thanks for the help guys, very much appreciated
