Saxo Bunny hopping.!!!

[maggie38]

Hi,
Just got my self a citroen saxo 1.1 forte on a w reg plate.

Drove it home fine about 20 miles on the motorway with no problems.

But this week it has started to bunny hop really badly from start up,sometimes it goes after 5/10 mins.
So i thought i would service it,so my beloved changed the oil/filter and air filter,cleaned the plugs changed the aux belt.

But the car seems just the same as before,its starts ok but sounds like its misfiring and revs allover the place.

Done a search on here and it could be one of 3 or 4 problems

Stepper motor?
Coil Pack.
CAT
Headgasket?

I dont want to start throwing alot of money at it, i have only just got it.

Any help would be appreciated

Maggie.

[lwigmore]

My GF's 1.1 saxo did this, so i checked the engine mounts and the prone ecu mounted mount bolt snapped clean in half, changed the mount and fixed the problem :y:

[maggie38]

The ECU mounts seem ok.

Went to start it earlier and its sounds really bad like a misfire and a smell of fuel,will run for a bit but cuts out.

Could it be the coil pack.?

[danny-vts]

also you could try cleaning the idle control valve
or change the coil pack

[Kyza]

I would start off with the free fixes of any possibilities,

- Clean the Idle control Valve (stepper motor)
- Clean any sensors around the throttle body

- Replace the fuel filter if you havnt already

See how it runs then, if the problem persists, I would look at getting a compression test done then if thats ok a diognostics test done to see if there are any errors logged. Could possibly be the LAMBDA so try another.

Does the problem happen when the engine is cold or hot?

[maggie38]

Idle control valve is that fixed on the front of the carb a black square thing with a multiplug connection and has a little spring plunger thing on it?

If its that taken it off today but not much to see or clean as its a sealed unit.

[maggie38]

The problem has happened first when the engine was cold but then went,but has happened when engine was warmed up today.

[stevo67]

Sometimes when the Cat is on its way out you get a fuel smell.


Steve.

[maggie38]

CAT would that cause all this misfire and running probs.?

[iSlayeR]

Could be the HT leads

[maggie38]

I thinks its going to be a process of illimination,and an expensive one as well.

[stevo67]

CAT would that cause all this misfire and running probs.?

Yes they can it causes a higher co2 rate.:y:


Steve.:drink:

[Railroader]

When it revs all over the place, is that when it is misfiring, or is it when it stops misfiring the revs come back strong?

[maggie38]

When its misfiring the revs are allover the place,it then cuts out.

[Railroader]

try disconnecting the temp sensors [gearbox end of block green and blue] and see how it runs. The ECU goes into default mode so that it will run without them.

Other than that it could be coilpack, lambda sensor. Does it misfire all the time when hot or does the problem come and go?

[maggie38]

When i started it up earlier from cold it misfired badly,then cut out,the car was cold.
It also misfired when it was warm but it was difficult to keep the revs going.

[badasssaxo]

just had same problem with my vts

had it diagnosed and it was coil pack so had to buy new one now its better than ever, put in new plugs too,
could be a number of things tbh and mulitple things , best to get it on diagnosis machine to find fault code it could be a cheap fix if your that lucky

[stevo67]

That can also be sensor related IE the coolant temperature sensor(green 1)they cost around £16.00 from eurocarparts.

Steve.

[badasssaxo]

That can also be sensor related IE the coolant temperature sensor(green 1)they cost around £16.00 from eurocarparts.

Steve.

good call steve

i had that problem on the vtr i had and changed coolant temp sensor and it never did it again

[Railroader]

good call steve

i had that problem on the vtr i had and changed coolant temp sensor and it never did it again

Why is it a good call Steve when I said it first?

[maggie38]

Thanks everyone for your help and advice iam taking it to a local garage tomorrow to get a diagnostic check done and will let you all know what the problem was.

Thanks
Maggie

[badasssaxo]

Why is it a good call Steve when I said it first?

didnt notice you had dude

no offence intended

[stevo67]

Why is it a good call Steve when I said it first?

GROW UP end of conversation.:homme:


Steve.

[maggie38]

Just a last post before it goes to the garage tomorrow,just started it incase it had fixed itself,it still has a bad misfire revs allover the place and eventually conked out with a strong smell of petrol going to leave it now until tomorrw....see what the garage says.

Thks

[Railroader]

Just a last post before it goes to the garage tomorrow,just started it incase it had fixed itself,it still has a bad misfire revs allover the place and eventually conked out with a strong smell of petrol going to leave it now until tomorrw....see what the garage says.

Thks

Just try what we said- its free and easy to do, you'll save a garage bill. But why did you ask us if you are taking it to a garage anyhow?

[maggie38]

Only to get the fault/diagnotic codes to fix myself dont have the money to buy all the possible causes IE coilpack,stepper motor,CAT.

[Railroader]

Only to get the fault/diagnotic codes to fix myself dont have the money to buy all the possible causes IE coilpack,stepper motor,CAT.

You cant get the codes off us unless we plug our machine in. All we can do is give you educated guesses. And I already said, try the free fix.

[badasssaxo]

You cant get the codes off us unless we plug our machine in. All we can do is give you educated guesses. And I already said, try the free fix.

obviously, thats what she wants, then once she knows whats wrong fix it herself

[Railroader]

obviously, thats what she wants, then once she knows whats wrong fix it herself

no i asked her why she is asking us if sh'es going to the garage anyway

[maggie38]

Took the car to a local garage,fault came up as coil/pack and leads,replaced with new and hey presto runs like a new car cost £64 for coil pack not a big job and new leads,all need todo is sort the brakes.

[Railroader]

Took the car to a local garage,fault came up as coil/pack and leads,replaced with new and hey presto runs like a new car cost £64 for coil pack not a big job and new leads,all need todo is sort the brakes.

Glad you got it sorted, thats not a bad price did that include diagnostic?

[badasssaxo]

fuck me £64 for new coil pack mine was £114 last week, it couldnt of been new more like second hand

or i been bent over, mine is vts though

[maggie38]

yep was almost brand new,was a customer returns box was opened and a bit dirty where it had been fitted,but really chuffed only took ten mins to fit,i have a bunny hop free saxo..yipeeee.

All i need todo now is to get it to stop better!!!

[Gareth_R]

Vts coilpacks are much dearer

[Railroader]

yep was almost brand new,was a customer returns box was opened and a bit dirty where it had been fitted,but really chuffed only took ten mins to fit,i have a bunny hop free saxo..yipeeee.

All i need todo now is to get it to stop better!!!

I have a spare one you could have had for a tenner. Did that include the diagnostic?