20 replies to this topic

[Tomf]

Well I took the Punto for its MOT today, it passed on everything apart from the emissions.

Before I took it to the MOT I replaced the cat and the lamber, I also changed the coil pack, HT leads, plugs and did the oil and filters, so now im not really sure what the problem could be…

If any one has any ideas please let me know.

I did have a look, but I cant find anyone local that I can plug the ECU into to tell me whats wrong, and I don’t want to drive it if I really don’t have to as it has no MOT, tax or insurance…

Any help really would be great as I need the car ASAP.

[Saxo-Fiesta-Mini]

what part did it fail on idle C02 high idel c02 ie 2.5krpm

most likely to be either a dodgy sensor or the injectors are clogged give it some redex and go for a spin on a private road

[Tomf]

Yea i chucked a bottle of red x in already. If faild on both idel and fast idel...

The only thing i can really thing of is an ECU fault, as its having the dodgy reving at cold starts, but this does when up to temp, but the idel is still lumpy....

Another thing i realised was its sucking up a hell of alot of air throught he filter, not like normal its like the sort of pressure you get out of a hoover...

Edited by Tomf, 10 March 2009 - 08:07 PM.

[mini_turbo_pete]

it sounds like a map sensor fault..

[Jammy]

I was going to say the same, wasn't sure whether it was airflow meter or MAP.

[Tomf]

Cheers for the replies, i was thinking the AFM, but whilst im at the motor factors ill get a MAP sensor aswell.

Fingerscrossed that will sort the problem out.

[Tomf]

Ok well i put a map sensor on but i couldnt find the AFM, but the problems still there...

Anyone else got any ideas?

[Jordie]

had a similar problem on a peugeot and it was the temp sensor.

was telling the ecu that the engine was cold all the time and overfueling it.

[ROD]

had a similar problem on a peugeot and it was the temp sensor.

was telling the ecu that the engine was cold all the time and overfueling it.

I had the same with my old Astra.

[Boycie]

Kinda fumbling in the dark without the emission figures...

post them up.

[Tomf]

Fast idel was around 7.5

and the other idel was around 1.5

Give or take 0.1 as i dont have the sheet with me

[Saxo-Fiesta-Mini]

if its sucking could be that the cam timin is off u done the timin belt anytime recently sounds like it suckin air on the power stroke threw the inlet port or a bad sealin valve or dead head lol sorry

[Tomf]

Nope when i brought the car it had a new cam belt, so i thought that might be the problem, had it off and re-timed it today, but it was set right

[Saxo-Fiesta-Mini]

then u have a canundrum if it ignition coil does it have enough spark ??? as that would make it run rich makes such a difference good plugs

[Tomf]

Well i have tried three different coil packs now, so i guess i could try the plugs, however would the plugs really change how the engine runs between the first 2 mins?