W124 230E Erratic tickover

[mattkh]

.... The difference is that 2 fuel pump died in 5 months.

How noisy was the fuel pump before it died..?

 

[DREAMER NO2]

I am thinking that the fuel pump relay will stop fuel pump or pumps from working untill it is replaced

 

[sebastien]

How noisy was the fuel pump before it died..?

sometimes normal and then louder ! Maybe because as I am almost at the fuel reserve now

 

[sebastien]

I am thinking that the fuel pump relay will stop fuel pump or pumps from working untill it is replaced

i checked inside the pump relay (the green one) and it s like brand new. Inside no rust just look perfect

 

[DREAMER NO2]

Sebastien You have one of the rare 200 model cars .And i have searched for other members and its so hard to find information on these 200 s Dont know if you have the right relay for fuel pump ,,but i should look like this .

 

[sebastien]

Sebastien You have one of the rare 200 model cars .And i have searched for other members and its so hard to find information on these 200 s Dont know if you have the right relay for fuel pump ,,but i should look like this . View attachment 74774

Mine is actually like this and look perfectly brand new I opened it and no cracks nothing

 

[sebastien]

I changed the canister, the fuel regulator, the intake temperature sensor, cleaned the pipe between fuel tank and canister

 

[DREAMER NO2]

Thats not the fuel pump relay the only relay with a fuse is the ovp relay look at my picture and find THAT relay

 

[sebastien]

Thats not the fuel pump relay its the ovp relay

this is my ovp relay and I changed it as well. it's located behind the battery we might not have the same model

 

[DREAMER NO2]

So the ovp relay is above is right . .But in your first picture your saying its the fuel pump relay ... i have never seen a fuel pump relay with a fuse on the top like you have ,,but i did say you have a rare model .

 

[DREAMER NO2]

So a check on the first relay proves it could be for fuel pump or auxiliary fan . So i love to see where this relay is situated .Can you post a picture please .

 

[sebastien]

So a check on the first relay proves it could be for fuel pump or auxiliary fan . So i love to see where this relay is situated .Can you post a picture please .

the ovp (red one) is just behind the battery and the fuel pump relay (the green one) is in the fuse and relay box. sorry I can't take picture now as there is a storm outside and the camera on y phone is also messing up with me

 

[DREAMER NO2]

Storm here as well,,i have just been to secure the fence panel its about to go flying .

 

[sebastien]

I think I should create another thread about my problem

 

[DREAMER NO2]

Nimdy any news mate ,,we got side tracked . I would wire that 7-8 pins on the fpr try it, and if its ok, then replace the relay cost you nothing do this.

 

[nimdy]

Nimdy any news mate ,,we got side tracked . I would wire that 7-8 pins on the fpr try it, and if its ok, then replace the relay cost you nothing do this.

I replaced my fpr a few weeks ago, now awaiting for the arrival of my new very expensive Bosch tps potentiometer which should be arriving next week and hopefully I'll get around to fitting it next weekend. I have watched a youtube video by a guy from Serbia on how to do it, I think fitting is simple but adjustment is the difficult part.

 

[nimdy]

I replaced my fpr a few weeks ago, now awaiting for the arrival of my new very expensive Bosch tps potentiometer which should be arriving next week and hopefully I'll get around to fitting it next weekend. I have watched a youtube video by a guy from Serbia on how to do it, I think fitting is simple but adjustment is the difficult part.

If that doesn't work I'll be putting my kit car back on the road whilst I ponder my next step, but I have everything crossed for this one.

 

[DREAMER NO2]

 

[nimdy]

Update 27 replaced potentiometer and..................................no difference. I ran the car with the air filter off and one thing I noticed was that the circular flap within the air intake seems to move of its' own accord. I cleaned out the throat and there was a little dirt in there but now it is spotless. What seems to happen is that sometimes it ticks over a little high and there is a slight gap visible at the edge of this flap, when it is idling normally there is no visible gap and finally when I rev it and let go the flap seem to come up a little higher than when idling normally and the car cuts out.

I noticed that there is a rubber buffer on the bar that runs across the top of the air intake but the bolt that I assume holds the flap to something does not come near the buffer, my question is should it? Also is it ok to remove this flap to clean it or would that be a disaster?

 

[DREAMER NO2]

Vacuum leak . and - Do you see any fuel from the rear of fuel pressure regulator