guys my w124 needs your help :(

[jonnyboy]

Most fuel pumps I have come across on MB's of this era are audible.
Good luck with it.
If it were a later car with a cat it could have been blocked causing choking up, a back box could still do this.

Referring to your "Bump" and "??????" posts above, I'm going to say that your postings generally are very difficult to read/understand. This may be the cause of a lack of response.........just a thought.......

 

[chriss428]

i have a cat! shes not that old! and i got a pump on order and i'll check the exhaust system next time shes on the ramp

 

[chriss428]

right fuel filter changed and red x injector clean used still no change

 

[chriss428]

right im gunna take the exhaust manifold off today and i was just wondering if the lander sensor in the cat not reseaving any fumes will it mess the idle up???

 

[nick mercedes]

right im gunna take the exhaust manifold off today and i was just wondering if the lander sensor in the cat not reseaving any fumes will it mess the idle up???

It will be the black unit on the side of the airflow housing.

Replaced a few of those back in the day...

 

[Tonison]

Which black unit? Could you please shed more light on this?

 

[Tonison]

How did you resolve this problem? Please update. thanks

 

[damiangt3]

I had a similar problem with my 1992 230E which I sorted in back in early Jan. Ran it low on fuel and the car coughed and spluttered and wouldn't rev above 2.5k without misfiring.

So as part of the usual diagnosis ie. dizzy, leads, ICV, vacuum tube to fuel distributor (very loose, but not the whole problem) I then looked at the fuel filter/pump/regulator, to my shock the regulator and filter were missing, someone had simply connected the old pump directly to the tank and fuel lines, so replaced the sorry old noisy pump, filter and connected up the regulator.

Put 10 litres of super in the tank and the after a few cranks the baby started up, a little rough initially but enough to drive to the fuel station to put 40 litres in with some BG44K fuel injector cleaner. The car now starts first time (a problem before with especially with no regulator) even on a cold day with no throttle.

So basically I would say don't under estimate the fuel pump, filter and regulator in this equation.

 

[chriss428]

thanks! i didnt think about the regulator at all, i think rob at ilton should be expecting a phone call lol

 

[jaymanek]

Have you checked the basics like compression?

 

[mazza]

"damiangt3"
"I then looked at the fuel filter/pump/regulator, to my shock the regulator and filter were missing"

If you are talking about the can shapped item that sits between the pump and filter, then thats an "ACCUMULATOR" its job is to smooth out pressure pulsations created by differences in pump volume delivery.
The fuel regulator is located next to the fuel distributor and basically maintains the correct fuel pressure system for the KE jet.

thanks! i didnt think about the regulator at all, i think rob at ilton should be expecting a phone call lol

Have you performed a fuel pressure test? this is paramount on the KE Jetronic!

As per "jaymanek's" post, check the basics first...take 15mins and check your CAMSHAFT timing.

Good luck

Mazza

 

[chriss428]

and how do i check my timing in 15mins? and fuel pressure test? ill speek to rob and get him to provide replacement parts and buy what i need cheers chris

 

[damiangt3]

"damiangt3"
"I then looked at the fuel filter/pump/regulator, to my shock the regulator and filter were missing"

If you are talking about the can shapped item that sits between the pump and filter, then thats an "ACCUMULATOR" its job is to smooth out pressure pulsations created by differences in pump volume delivery.
The fuel regulator is located next to the fuel distributor and basically maintains the correct fuel pressure system for the KE jet.

Regulator, accumulator, distributor.....you need an ology. Luckily enough I did know what that 'thing' near the pump was and what it did