Help please Anyone

[Slomo]

Hello

Happy New Year everyone

I have got a 1999 S40 T4se

When I accelerate it coughs and splutters. Lift of the gas and it settles.
It will sit at 70-80mph comfortably then all of a sudden lose power and cough and splutter.

I have replaced

Injectors
Air Flow Meter
Coils
Spark plugs
Idle control valve
Fuel rail


Now car runs 99% better with the Traction control TURNED OFF?

Anyone?

Help GREATLY Needed

Slo

[Enigma666]

Some cars don't seem to like the remap with the TRACS on mate. There are some which run fine (like mine) and some that really hate it.

Only other thing to check is the fuel pump mate.

[wegal]

I have no idea slo.... sorry its playing up though mate.

[gazbak1]

i think the problem was the air filter.

gazbak1

[Enigma666]

Air filter?
Like a panel filter?
Never seen that before....even a standard paper filter will be fine for 300bhp.
How strange.
Unless of course it's an induction kit....loose hose maybe?

[gazbak1]

nope just filled with crap!

gazbak1

[Slomo]

fully cleaned out and still an issue.

Turn Traction control off and car drives very well...

Slo

[wegal]

Well then it sounds like the computer gizmo that controls the traction control has gone wrong. Maybe it keeps trying to override you. Wheel sensor maybe ?

Cant you get the codes read and see what faults if any its showing ?

[jimka]

try resetting the traction control chap - it's in the owners manual (sold mine now so can't get it for you)

its something like, quickly get to 40mph and brake, repeat, and stop.. it should reset system (you do it when you fit different wheels / spare etc)

hope this helps.