318i rev is hunting

[ysn001]

hi Gents

my car is doing some funny $h!t.....

while the car is idling... the rev automatically goes to like 1500rpm and then drops... and it keeps on doing it....

could it be a sensor or something?
please assist

thanks

 

[Krinash]

hi Gents

my car is doing some funny $h!t.....

while the car is idling... the rev automatically goes to like 1500rpm and then drops... and it keeps on doing it....

could it be a sensor or something?
please assist

thanks

Could be your idle valve. You need to have it cleaned. You might have to adjust your airflow to get her to run/breed/burn smooth again :idea:

 

[ysn001]

hi Gents

my car is doing some funny $h!t.....

while the car is idling... the rev automatically goes to like 1500rpm and then drops... and it keeps on doing it....

could it be a sensor or something?
please assist

thanks

Could be your idle valve. You need to have it cleaned. You might have to adjust your airflow to get her to run/breed/burn smooth again :idea:

thanks for the response.... but where is the idle valve..... lol

 

[zaleonardz]

Howdy man,

What 318, do you know specifically what engine, N42, N46...

Look inside the engine bay, it should be on a sticker.

What year is the car ?

 

[ysn001]

Howdy man,

What 318, do you know specifically what engine, N42, N46...

Look inside the engine bay, it should be on a sticker.

What year is the car ?

Leka n u boss?

dont have the car with me but its 2004 e46 318.

thanks

 

[zaleonardz]

Maybe N46....

You do not have Idle control valve on this car.

I would suggest having a diagnostics done

 

[Legacy]

Check for vacuum leaks, crank position sensor, MAF. Any other symptoms like loss in power, jerky power delivery? Without more info it could be any number of things from a sensors to something very serious so like LZ said do some diagnostics.

 

[zaleonardz]

Actually, Legacy...... come to mention vacuum leaks,

THere is a breather pipe that runs the lengh of the intake, this pipe traditionally gets crushed under the plastic cover and becomes very "holy" rather quickly..

I do not think I have worked on one N42/N46 where this pipe (and some others) was not shot...

But yea, again, diagnostics is your best bet here

 

[frikkieh]

I would still suggest that the diagnostics get done. It can point out a faulty cam position sensor (not sure if your car has one though).

 

[Twinz]

Its the HPFP...:roflol:

Sorry could not resist...whenever i hear about rev needles on the hunt, i get reminded ...:rollsmile:

 

[Die_Miek]

THere is a breather pipe that runs the lengh of the intake, this pipe traditionally gets crushed under the plastic cover and becomes very "holy" rather quickly..

can you post a link on realoem please :rollsmile:

 

[ysn001]

@legacy- the car does tend to lose power between the gears.... like a dead spot. i was also thinking diagnostic test.... will have to get it done asap coz the fuel consumption in messed up and the power is slacking.