no, cause its a petrol engine
:doh:
General Cold start engine bad idle for 10-15 seconds
- Thread starter aurick86
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General Cold start engine bad idle for 10-15 seconds
:doh:
I think that I found something
The fuel system loses pressure
At the time I took off the pump and I think that I found the problem - bad seal in the pressure regulator
the o-ring is gone
I bought a new o-ring and maybe today I will see if there is a result
If not - the next step is the valve inside the pump
...just for info - All these elements are supplied by BOSCH
The fuel system loses pressure
At the time I took off the pump and I think that I found the problem - bad seal in the pressure regulator
the o-ring is gone
I bought a new o-ring and maybe today I will see if there is a result
If not - the next step is the valve inside the pump
...just for info - All these elements are supplied by BOSCH
aurick86
Established member
Please provide pictures.
What i did:
-cleaned the throttle body (a little improvement but hesitation was still there)
- i cleaned the MAP sensor ..it was full of crap. After i cleaned it it seemed to respond much better to the throttle and this morning it started great.
Still not sure that was the problem. will reply with the results after a few weeks of testing.
What i did:
-cleaned the throttle body (a little improvement but hesitation was still there)
- i cleaned the MAP sensor ..it was full of crap. After i cleaned it it seemed to respond much better to the throttle and this morning it started great.
Still not sure that was the problem. will reply with the results after a few weeks of testing.
the problem is not there, or at least not only in this regulator
valve in the fuel pump is OK
remains one or more of the fuel injectors to miss fuel and the fuel goes into the engine
or leak in the fuel line ... but it is almost impossible
valve in the fuel pump is OK
remains one or more of the fuel injectors to miss fuel and the fuel goes into the engine
or leak in the fuel line ... but it is almost impossible
I have found the problem
Everything comes from the fuel regulator
It has two functions
The first is to hold the pressure of the fuel at 3.5 bar
And second - when the car is not running, the fuel can not be put back in the tank and have a residual pressure in the fuel line
This regulator is located on the pump housing
I do not know whether it is sold as a spare part, I bought it new pump
Represents a plate which is bent by a pressure of the fuel
After a while time, the plate becomes softer and the car does not hold 3.5 bar
Besides when you dont use the car for some hours in the fuel line pressure drops and is so difficult to start the engine
Can be used and pump from Stilo
Here the regulator is much better, and is sold as a separate part
To find out if your problem is coming from the regulator must make two simple test s
Must be mount gauge on the fuel rail
Looking at the pressure on working engine - should be 3.5 bar
Then turn off the engine and monitor the pressure
If everything is OK, there must be a residual pressure 1-2-3 bar in a few hours
Everything comes from the fuel regulator
It has two functions
The first is to hold the pressure of the fuel at 3.5 bar
And second - when the car is not running, the fuel can not be put back in the tank and have a residual pressure in the fuel line
This regulator is located on the pump housing
I do not know whether it is sold as a spare part, I bought it new pump
Represents a plate which is bent by a pressure of the fuel
After a while time, the plate becomes softer and the car does not hold 3.5 bar
Besides when you dont use the car for some hours in the fuel line pressure drops and is so difficult to start the engine
Can be used and pump from Stilo
Here the regulator is much better, and is sold as a separate part
To find out if your problem is coming from the regulator must make two simple test s
Must be mount gauge on the fuel rail
Looking at the pressure on working engine - should be 3.5 bar
Then turn off the engine and monitor the pressure
If everything is OK, there must be a residual pressure 1-2-3 bar in a few hours
