Smells??

**bobbych** · Wednesday 17th February 2010, 14:56

ok, I purchased a 1994 850 Turbo last October. Now ever since I have had the machine, it smells in 2 places.

Firstly, out of the exhaust, is an Oily petrolly smell. There is NO blue smoke, and it does not seem to loose any oil.

Second, in the engine bay area, a similar, but more of a burning watery tyoe stagnant smell, not the same as the exhaust.

does anyone have any ideas on these. THe car seems to run ok, loose no oil or water but smells bad

**bobbych** · Wednesday 17th February 2010, 15:08

in fact, smelling the exhaust again it smells more of fuel than oil. is there any reason for this

**martybelfastt5** · Wednesday 17th February 2010, 20:06

mine is the same at present has fume leaks under bonnet due to breather>pcv< leaking slighty needs replaced as for the exhust sounds normal,,

**bobbych** · Wednesday 17th February 2010, 20:35

mine does not appear to have any leaks, and I did the PCV last week. It smells of fuel at the exhaust only, and smells of, well 'old foisty engine' under the bonnet

**cameron** · Wednesday 17th February 2010, 21:05

Could it be over fuelling ?

When did you last change the oil ?

**bobbych** · Wednesday 17th February 2010, 21:15

Originally Posted by cameron

Could it be over fuelling ?

When did you last change the oil ?

but I thought it was all controlled by the ECU, so what else would cause over fuelling?

**cameron** · Wednesday 17th February 2010, 21:18

Does the fuel pump go off when you start the car ?

My fuel pump hums for a couple of seconds then stops but kevin4878's t5 had the fuel pump running all the time which caused it to overfuel quite badly.

**bobbych** · Wednesday 17th February 2010, 21:19

Originally Posted by cameron

Does the fuel pump go off when you start the car ?

My fuel pump hums for a couple of seconds then stops but kevin4878's t5 had the fuel pump running all the time which caused it to overfuel quite badly.

mm, nmot sure will have to listen tomorrow, how long should it stay on?

**cameron** · Wednesday 17th February 2010, 21:29

Seconds, maybe 3 - 4 seconds.

Thats what mine does anyway.

**bobbych** · Wednesday 17th February 2010, 21:32

ok, so can i confirm is this with just ignition on, or after starting car? if after starting where is best to hear it?

**cameron** · Wednesday 17th February 2010, 21:36

Just turn the ignition on till the lights come on, make sure before hand the radio and the heater fan are off

You should hear a humming noise from the pump at the driver side rear which should last for 3 maybe 4 seconds then stop.

**bobbych** · Wednesday 17th February 2010, 21:39

ok mate ta, will let you know tomorrow

**cameron** · Wednesday 17th February 2010, 21:41

Cool

**Volvostorm** · Wednesday 17th February 2010, 22:00

Smells rich? could also be the lambda sensor, strange that you haven't got a light on the dash. Try a friendly garage, see if they can pop it on an emissions tester for you

**bobbych** · Wednesday 17th February 2010, 22:36

i prob would have a light if it worked, one of the MANY bodges that were done by the previous owner, i suspect he has removed the bulb

**bobbych** · Thursday 18th February 2010, 11:38

ok first thing, i tried the fuel pump. works as it should, ran for around 3 secs then stopped.

before I started the car, i pulled the codes in the fuel system and got

3-2-5 ECU memory loss [I had battery off yesterday]
1-4-3 Front Knock Sensor signal faulty or absent.

I then ran the car on an 80 mile trip, with no issues, no smoke, booted it a few times, and no issues

I will be going out again later to pull the codes again after the trip

the trip which was 80% motorway, cruise set to 70, returned 28MPG, which seems a but thirsty, so it may still be overfuelling?

**cameron** · Thursday 18th February 2010, 22:55

That sounds like usual mpg tbh, unless you take it really easy then you can get 40 +

Thats at 65mph with 4 kids and the mrs in the car.

**Volvostorm** · Thursday 18th February 2010, 23:15

lol, I love to know how you managed that, mine does 18mpg!

and, no, its not running rich

**bobbych** · Friday 19th February 2010, 09:33

Originally Posted by cameron

That sounds like usual mpg tbh, unless you take it really easy then you can get 40 +

Thats at 65mph with 4 kids and the mrs in the car.

what is taking it easy? i was sat, using Cruise Control at 70. the Turbo gauge NEVER went into the white, is it was just mainting 70 all along, and the instant MPG on the dash never showed above 40

**kevin4878** · Friday 19th February 2010, 10:49

Originally Posted by cameron

Does the fuel pump go off when you start the car ?

My fuel pump hums for a couple of seconds then stops but kevin4878's t5 had the fuel pump running all the time which caused it to overfuel quite badly.

still does, not driven it for 2 months,