running issues

[JT]

Hi all

I have problems........with the black 850, lol

It was running fine on Friday,filled her up with tescos best and put a detox/cleaner in it.
On the way to Brooklands yesterday,I noticed it was starting to cough a bit at 3500 rpm
this got gradually worse,to a point where I had to pull over and check something hadn't come off.
Didnt find anything.

Limped on to Brooklands and we only just got there at which point the lambda light had come on.
When we went to leave it wouldnt start and when it finally did,it was really rough.
I couldn't really touch the throttle as it would cough and splutter really badly,hence to say the drive
home was not much fun.

So today I have changed:

fuel filter
all 5 injectors
fuel rail
fuel reg
IDC
MAF
Lambda sensor
ECU

all with no joy

any ideas anyone?
what have I missed?

cheers
JT

[Nealevo]

Cat blocked???? I've had this on another car same issues???

[JT]

really?

oh crap

cheers Neal

[p fandango]

Have u read the engine codes?

[JT]

Have u read the engine codes?

Black has the OBD 2 port
I dont have a reader for that

[p fandango]

Black has the OBD 2 port
I dont have a reader for that

https://www.box.com/shared/oy63haaef2

[JT]

https://www.box.com/shared/oy63haaef2

yea right! lol

isnt there a proper code reader flying about on this forum somewhere??

[oblark]

Try some fresh fuel

[JT]

Try some fresh fuel

I have thought of that Rob,but with 3/4 of a tank in there,not sure I want to waste all that! lol
but I might top it up with fresh stuff and see what happens

[Tomcat]

Think I'd get the codes read, then if that doesnt bring up anything I'd drain the tank and try some fresh stuff. You didn't put too much cleaner in it did you?, sounds coincidental that it started playing up shortly after you filled up. What colour was the sparks plugs and the lambda when you pulled them?..

[stribo]

Have you checkedf the ignition side? Could be coil, rotor arm, dizzy cap.

[JT]

Have you checkedf the ignition side? Could be coil, rotor arm, dizzy cap.

well when it starts, it will tick over like normal,so I think they are all ok,
its only when I touch the throttle it seems to choke itself and the point of the Lambda light is up,makes me think Neal could well be right

I did check all the leads etc were where they should be,but I havent replaced any..........yet

[stribo]

Before I changed my plugs, leads etc. mine would start fine and run fine when cold, but once warmed up if put under any load would misfire badly, although it would run fine on part throttle. As has been said above though it could be the cat.

[timbo]

This bloke (ripsta33) used to sell the code readers on eBay for £14.99, don't know if he's got any left??

http://www.volvoforums.org.uk/member.php?u=16551

[claymore]

Mine used to do that, changed the plugs an all was perfect.

[WOODY T5]

Idle con valve !

[JT]

thanks for all the input

I will change plugs n leads tomorrow
fingers crossed

[p fandango]

I will change plugs n leads tomorrow
fingers crossed

hows the missus going to get to work? lol

[JT]

hows the missus going to get to work? lol

I would rather walk than drive her 1st option! lol

[merc85]

Split intercooler hose perhaps bud? will flag a light due to runing lean, check your boost hoses and intercooler buddy