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  #1  
Old 05-15-2003, 01:05 AM
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Join Date: Feb 2001
Posts: 199
Unhappy cant figure out why it's missing

Hello all,
It's an 89 190e with the 2.6...Generally, when this has happened in the past it was just a fouled plug. Well, I fixed the prob with why the plugs were fouling in the first place, I quit burning oil. I don't foul plugs anymore but have new ones in there anyway. I have spark in all wires, New cap and rotor, just changed the fuel filter and it still runs rough and gutless as if it has a fouled plug. any ideas?
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German autos!!!
'67 250se coupe
'89 190e 2.6 (gone but I kinda miss it)
'96 c220
'07 BMW x3
'59 0319 diesel Omnibus...the "O"
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza
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  #2  
Old 05-15-2003, 04:45 AM
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Join Date: Sep 2002
Location: Denmark
Posts: 412
Did you inspect the ignition coil?

On my 300E the contact point (copper "cup" where the wire makes contact), was corroded to nothing more than green powder. -Strangely enough it still started fine but had very rough idle.

Freestyler
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Never criticize someone until you've walked a mile in his shoes. That way, when you do, you're a mile away -and you have his shoes!


'86 300E optically converted to '95 E300 (Sold)
-Blauschwarz on silver
-Black leather
-17" AMG & 15" AMG for winter
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  #3  
Old 05-15-2003, 11:24 AM
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Join Date: Jul 2001
Location: SoCal
Posts: 1,303
Which plugs? What electrode gap?

Steve
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  #4  
Old 05-15-2003, 11:45 AM
haasman's Avatar
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Join Date: Jun 2001
Location: San Francisco, CA
Posts: 3,097
opossum

If it were my car at this point I would run two bottles of Techron Fuel Injector cleaner through it with less than a full tank of fuel. I would get hot and drive it hard, say in the hills.

If that didn't clear it up I would bleed the fuel injector lines at the fuel distributor. A dangerous job >raw fuel on a running engine< but often on older cars seems to help.

I did the above on the 190E which ran so poorly I was sure it had severe internal problems. When I bled the injector lines I was amazed at the amount of crud that came out. I did it several times.

The 190E now runs very well, lots of power and almost a perfect idle.

Keep us posted,

Haasman
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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)
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  #5  
Old 05-15-2003, 05:40 PM
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Join Date: Feb 2001
Posts: 199
thanks guys

steve- bosch coppers at .032.. same as I always have..h9dc I think

freestyler- I will go check the coil wire for crud.

haasman_I will also go pick up another bottle of injector cleaner and see what happens...If that is it I have a testimony for using chevron gas because as of lately my wife has been using the stuff from costco because gas has been so expensive everywhere..I warned her..
__________________
German autos!!!
'67 250se coupe
'89 190e 2.6 (gone but I kinda miss it)
'96 c220
'07 BMW x3
'59 0319 diesel Omnibus...the "O"
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza

Last edited by opossum; 05-16-2003 at 12:10 AM.
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  #6  
Old 05-15-2003, 07:06 PM
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Join Date: Feb 2001
Posts: 199
update

I threw in a big bottle of techron (for 20 gal) on 3/4 tank which had previously had some octane boost / injector cleaner by stp. I drove around town pretty hard for 45 minutes... I already can tell a little difference so maybe it is just the injectors.

My new question is: Is it bad to drive around like this when you arent totally sure what the problem is? Like if you had a fouled plug and drove on it, all that gas is accumulating in your cylinder unburned..obviously that cant be that good for your cylinder walls and rings, right?
thanks again all!
__________________
German autos!!!
'67 250se coupe
'89 190e 2.6 (gone but I kinda miss it)
'96 c220
'07 BMW x3
'59 0319 diesel Omnibus...the "O"
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza
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  #7  
Old 05-16-2003, 11:26 AM
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Join Date: Feb 2001
Posts: 199
just a bump
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German autos!!!
'67 250se coupe
'89 190e 2.6 (gone but I kinda miss it)
'96 c220
'07 BMW x3
'59 0319 diesel Omnibus...the "O"
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza
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  #8  
Old 05-16-2003, 11:53 AM
haasman's Avatar
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Join Date: Jun 2001
Location: San Francisco, CA
Posts: 3,097
opossum,

Probably not but it depends on what is wrong. Do you have raw fuel leaking into a cylinder? Are there loud and unusual mechanical noises? Are you experiencing very low MPG? Unusual oil consumption?

I think injector clogging is more prevelent than a lot of people realize. Most drivers in America take it easy, don't do sustained high engine speed driving. Fuel quality varies a lot and some people don't see the value in running the right octane.

The 300E will run poorly and stumble when warm and eventually also with cold starts when I have done the injector cleaning in a long while. This car has 207k miles and has never had the injectors replaced ....

How is it running now?

Haasman
__________________
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)

Last edited by haasman; 05-16-2003 at 11:59 AM.
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  #9  
Old 05-16-2003, 01:05 PM
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Join Date: Feb 2001
Posts: 199
still pretty rough at idle and sluggish. How would I telll if raw fuel was building up in a cylinder? It isn't excessively noisy..maybe a ticking valve noise at most. Too soon to tell if I'm using excessive oil or gas. However, a friend of mine looked at it and is convinced that all the plugs are firing. I just wish I had access to a spare set of plug wires (I'd hate to spend 125 bucks if I didn't have to) I'm hoping the injector cleaner will clear things up over the weekend. If not I'll probably just order some plug wires anyway.
thanks again, opossum
__________________
German autos!!!
'67 250se coupe
'89 190e 2.6 (gone but I kinda miss it)
'96 c220
'07 BMW x3
'59 0319 diesel Omnibus...the "O"
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza
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  #10  
Old 05-18-2003, 05:08 PM
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Join Date: Feb 2001
Posts: 199
As it turns out, all the plug wires are indeed ok. There is not alot of marked improvement in terms of an injector clearing up. Is there a chance the the timing advance is stuck? How do I check for that? Is it a vacuum line?
thanks again everyone
__________________
German autos!!!
'67 250se coupe
'89 190e 2.6 (gone but I kinda miss it)
'96 c220
'07 BMW x3
'59 0319 diesel Omnibus...the "O"
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza
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  #11  
Old 05-18-2003, 07:24 PM
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Join Date: Mar 2003
Posts: 64
Have you tried checking the duty cycle? Do a search in the archives..
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  #12  
Old 05-18-2003, 08:08 PM
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Join Date: Oct 2002
Location: Toronto, Canada
Posts: 700
I had an occasional miss on my 190E, and it was a bad wire, easy to spot in the dark, actually it was 2 bad wires

xp
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1985 190E 2.3L - a constant project.
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  #13  
Old 05-18-2003, 08:59 PM
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Join Date: Feb 2001
Posts: 199
Hmm,
what the heck is a duty cycle? Does it have something to do with the mixture? I've only heard of duty cycle in reference to welders..LOL! I did a search but there was nothing informative for the "fixing your car for dummies" type guy.
thanks again.
xp190, How did you tell that your wires were bad in the dark?
__________________
German autos!!!
'67 250se coupe
'89 190e 2.6 (gone but I kinda miss it)
'96 c220
'07 BMW x3
'59 0319 diesel Omnibus...the "O"
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza
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  #14  
Old 05-24-2003, 12:30 PM
Registered User
 
Join Date: Feb 2001
Posts: 199
Well,
I figured it out, there is no compression in #6. Valve job time? I just did the valve seals 2000 miles ago..should have done the whole thing, eh?
thanks all
__________________
German autos!!!
'67 250se coupe
'89 190e 2.6 (gone but I kinda miss it)
'96 c220
'07 BMW x3
'59 0319 diesel Omnibus...the "O"
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza
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