Runin Rich

John S

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Jun 15, 2007
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I have a 75 - 450 SL Fuel Injected V8. Does anyone know if & how I can adjust the mix. I know I'm running rich. It runs great, but I'm getting about 13mpg. It used to get around 20. Yes I've changed plugs, injectors, filters, seat covers, yada, yada. Is there a "stop doing this" switch or screw I've missed????
 

television

Always remembered RIP
Joined
Mar 14, 2005
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Age
87
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
That will be the D injection for that year, and I am waiting for a special CD on this system, but I may have some links
 

turbopete

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Feb 4, 2009
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Age
46
Location
Spennymoor
Your Mercedes
2017 '17' Ford Mondeo 2.0TDCi ST Line X 180 (sorry)
where on earth do you get all these cd's from Malcolm? i tried to get a download copy of WIS/EPC and it seems the files were corrupt! gutted as i thought id be able to help more people if i had more info!
 

Number_Cruncher

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Oct 10, 2007
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Your Mercedes
1995 W124 E300D TE
If it's D jetronic, there will be a potentiometer on the control unit where the mixture is adjusted. However, leave well alone!, and fix the cause of the fault first!

Check the vacuum pipe and connections to the pressure sensor, and make sure the electrical output is correct. Also check the output of the temperature sensor.
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
341
Age
87
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
where on earth do you get all these cd's from Malcolm? i tried to get a download copy of WIS/EPC and it seems the files were corrupt! gutted as i thought id be able to help more people if i had more info!

I only have a few CDs,,but I do have hundreds of links, as a result of belonging to many MB forums, the hardest job is knowing what I have got. Time in sorting it all is the hardest bit and the time to read it all
 

turbopete

Senior Member
Joined
Feb 4, 2009
Messages
14,209
Reaction score
329
Age
46
Location
Spennymoor
Your Mercedes
2017 '17' Ford Mondeo 2.0TDCi ST Line X 180 (sorry)
not surprised at that! theres not much you dont seem to have info on! thankfully for the rest of us!
 


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