Major issues ..oh where to start!

[scottb88]

Ok because of all the issues I have been having with the car I will just make a list....OK so:

SAXO 1.1 HDZ SINGLE POINT INJECTION 2000 reg 59k

Problems:
cold set offs , stall or kangeroo like mad , warm is fine.

Rough idle when warm, sat in traffic it bounces around 500 - 900 rpm the rpm needle constantly bouncing around + sometimes cuts out.

Acceleration isn't smooth all the time it comes in jerks if that makes sense.

Things I have fixed/replaced

Through checks for vacuum leaks
Idle control stepper motor
Cleaned throttle body and inlet manifold
Lambda sensor
Coolant sensor
Cam belt, water pump, tensioner.
Another service + another set of Bosch plugs
Coil pack and ht leads
Gearbox oil
Fuel filter
And a full throttle body replacement from scrap man

Please, any insight or advise would be gratefully appreciated.

Scott, thanks

[Mickswan]

Bad ECU?

[Ben_SaxoForte]

have you checked fuel is getting through ok? maybe a fuel pump on the way out

[stevo67]

Fuel pump out give the body a gentle tap,put back in and see if it makes a difference.

[scottb88]

Ahh thanks for the replies and suggestions I'll update you once I look at the fuel pump. One thing that has just reminded me of actually is a couple of weeks a go after sticking a tenners worth of petrol in, when the pump primes on the 2nd key turn before cranking the engine. The needle didn't move and red light stayed on. It took about 3 primes before the needle moved. Don't know if this is related but the pump had crossed my mind.

[stevo67]

That's either the gauge not working properly or the float on the sender that's faulty.

[fdimu]

What fixed it in the end?

[scottb88]

Sorry for the very late reply, i never got it fixed, still having the same issues but only when the car feels like it. It can be spot on for a couple of weeks, no issues at all then one day sat in traffic it will cut out for no reason or the revs will start bouncing around or sometimes when i set off at roundabouts it will almost die or kangaroo.

There has to be a cause, acceleration still isnt smooth and sometimes i can smell petrol with no apparant cause or visible leaks. It does my head in.

Cant do diagnostics on mine either not without a Lexia obd reader (i think thats what its called) the generic ones dont work on the SPI saxos i believe.

Personally i think its down to fuelling/mixture.