Hunk Of Junk

0ph0rce0

My piece of ****e car is whooring the petrol out of it.

Its a punto 1.2 8v

Just had the thing serviced, oil change, new air and oil filters, new spark plugs and leads, and a new battery.

It seemed fine before it went for a service and was getting up in the 40's mpg, no jumping and was running really smooth.

since i got it back its idling high on start up goes down after a while but struggling to even get 30mpg. The car jumps a lot when stationary and i can feel it while in the seat.

Its dropping like a quarter tank every second day, i drive 12 miles to work and back and not much more to be honest.

Tried changing all the service parts they put in with OEM parts from fiat dealer and still the same, chucked a fuel cleaner in and still the same.

Anything i could be looking for??

I was going to throw the diagnostic computer in to see if there is any faults, do you know if any faults could be there if there is no warning on the dash????

Any Ideas???



Oh and i dont need any FIX IT AGAIN TOMORROW JOKES :rolleyes:

OldmanMondeo

Possible a coil pack gone. Same thing happen on a focus we used to own, rough reving, drank petrol like Fr. Jack Hackett.

dgt

HT leads
Oxy sensor

Check both.

Mk1 or 2?

0ph0rce0

dgt wrote: »

HT leads
Oxy sensor

Check both.

Mk1 or 2?

Checked the leads and changed.

Its A MK2, Dont really know how to check the sensor, i know where it is but havent a clue what to check for

dgt

0ph0rce0 wrote: »

Checked the leads and changed.

Its A MK2, Dont really know how to check the sensor, i know where it is but havent a clue what to check for

Leads normally break down internally, but since they're changed that's eliminated.

How does the car drive? Jumpy, un-responsive?

How is the coolant?

0ph0rce0

dgt wrote: »

Leads normally break down internally, but since they're changed that's eliminated.

How does the car drive? Jumpy, un-responsive?

How is the coolant?

Coolant was topped up in the service

When i'm driving it seems ok, sometimes it feels like its loosing a bit of power (as in when i hit the pedal kind of feels like a lack of power or poke) for a second.

Other than that it seems fine and it doesnt happen that often.

Its all happening when idle really, when starting up no matter if it cold or not, it will always idle at about 1500 and after some driving it will then idle at about 750 - 800 which seems normal, but i can still feel the banging and knocking effect

dgt

0ph0rce0 wrote: »

Coolant was topped up in the service

When i'm driving it seems ok, sometimes it feels like its loosing a bit of power (as in when i hit the pedal kind of feels like a lack of power or poke) for a second.

Other than that it seems fine and it doesnt happen that often.

Its all happening when idle really, when starting up no matter if it cold or not, it will always idle at about 1500 and after some driving it will then idle at about 750 - 800 which seems normal, but i can still feel the banging and knocking effect

Hmmm.... Did you change the thermostat?

0ph0rce0

dgt wrote: »

Hmmm.... Did you change the thermostat?

Not Yet Maybe Tomorrow :rolleyes:

dgt

0ph0rce0 wrote: »

Not Yet Maybe Tomorrow :rolleyes:

That usually causes piss poor mpg in these cars. If jammed open, the engine will run cold. The ECU will compensate by running rich ie overfuelling.

Failing lambda/s also causes poor mpg, to test it you need to plug it into diagnostics and watch a live run of how well its working ie is it reading slow

0ph0rce0

dgt wrote: »

That usually causes piss poor mpg in these cars. If jammed open, the engine will run cold. The ECU will compensate by running rich ie overfuelling.

Failing lambda/s also causes poor mpg, to test it you need to plug it into diagnostics and watch a live run of how well its working ie is it reading slow

Ok cheers, i'll hook up the diag tomorrow and see if there is anything going on.

0ph0rce0

Ok So i hooked up the computer and got these faults back

U1601 - Network

P0105 - Powertrain
Manifold Absolute Pressure/Barometric Pressure Circut

P0135 - Powertrain
O2 Sensor Heater Circut (Bank 1 Sensor 1 )


Any Ideas????

swarlb

0ph0rce0 wrote: »

My piece of ****e car is whooring the petrol out of it.

Its a punto 1.2 8v

Just had the thing serviced, oil change, new air and oil filters, new spark plugs and leads, and a new battery.

It seemed fine before it went for a service and was getting up in the 40's mpg, no jumping and was running really smooth.

since i got it back its idling high on start up goes down after a while but struggling to even get 30mpg. The car jumps a lot when stationary and i can feel it while in the seat.

Its dropping like a quarter tank every second day, i drive 12 miles to work and back and not much more to be honest.

Tried changing all the service parts they put in with OEM parts from fiat dealer and still the same, chucked a fuel cleaner in and still the same.

Anything i could be looking for??

I was going to throw the diagnostic computer in to see if there is any faults, do you know if any faults could be there if there is no warning on the dash????

Any Ideas???



Oh and i dont need any FIX IT AGAIN TOMORROW JOKES :rolleyes:

If the car was fine before the service, and you paid good money for the service, and now its not fine....why not bring it back and ask them to fix it properly. Rather than spending more money, time and effort fixing it yourself.

0ph0rce0

swarlb wrote: »

If the car was fine before the service, and you paid good money for the service, and now its not fine....why not bring it back and ask them to fix it properly. Rather than spending more money, time and effort fixing it yourself.

i did that and they told me it was fine. all the signs are pointing to the lambda sensor, checked the stats and its way out.

I will change it myself, but i know there is 2 on this car, just trying to find out which sensor is (BANK 1 SENSOR 1)

0ph0rce0

Still have had no luck sorting this

Everything seems fine but the engine is knocking like a good thing now.

Checked most stuff but it sounds like its coming from inside the block.

In the pic below (not my car but same engine)

Where i have circled there is a lot of oily residue which looks to be coming from the engine.

[IMG][/img]

You can see the line where 2 parts of the engine meet if you get me..

In between the arrows there is oily stuff all over the engine block? Any ideas? Could one have a leak which is causing my car to idle like a pimps car with hydraulics.

Jordan5372

possible oil overfill?

Toyotafanboi

that's the valve cover gasket weeping. i think its very unlikely that it's your problem.

dgt

It's the rocker cover gasket, they go on the 8v quite often.....

dgt

Also OP, did you get thethermostat done since?

0ph0rce0

dgt wrote: »

Also OP, did you get thethermostat done since?

No not yet, but i'm thinking thats next haha.

The dial on the dash takes forever to get to a decent temperature, and when it does as soon as i take off the dial flys up and down from halfway to bottom but more so always at the bottom.

Cee-Jay-Cee

0ph0rce0 wrote: »

Ok So i hooked up the computer and got these faults back

U1601 - Network

P0105 - Powertrain
Manifold Absolute Pressure/Barometric Pressure Circut

P0135 - Powertrain
O2 Sensor Heater Circut (Bank 1 Sensor 1 )


Any Ideas????

Dud you change the MAP and O2 sensirs? The O2 sensor us a prime candidate for poor economy.

0ph0rce0

Anyone know if i could pick a thermostat up from somewhere today???

dgt

0ph0rce0 wrote: »

Ok So i hooked up the computer and got these faults back

U1601 - Network

P0105 - Powertrain
Manifold Absolute Pressure/Barometric Pressure Circut

P0135 - Powertrain
O2 Sensor Heater Circut (Bank 1 Sensor 1 )


Any Ideas????

The map sensor may be dirty and could do with a clean.

The oxy sensor has failed due to excessive fuelling. A new one is about €80 from a motor fac. This is caused by the car not heating up properly, keeping it in cold mode. What part regulates this I wonder.....

dgt

0ph0rce0 wrote: »

Anyone know if i could pick a thermostat up from somewhere today???

Any decent motor fac should be open and have one in stock

0ph0rce0

dgt wrote: »

The map sensor may be dirty and could do with a clean.

The oxy sensor has failed due to excessive fuelling. A new one is about €80 from a motor fac. This is caused by the car not heating up properly, keeping it in cold mode. What part regulates this I wonder.....

I'm guessing the thermostat is stuck open and the engine is running cold all the time and that's why its never getting up to a decent temperature so i'll see if i can get one in.

0ph0rce0

Right i work quick

Have a guy droping one down to me in 10 mins :cool:


Now to find out where the thermostat sits and change her out.

If anyone knows where exactly it would be on a 2000 1.2 8v punto please share.

dieselbug

0ph0rce0 wrote: »

i did that and they told me it was fine. all the signs are pointing to the lambda sensor, checked the stats and its way out.

I will change it myself, but i know there is 2 on this car, just trying to find out which sensor is (BANK 1 SENSOR 1)

So you had these fault codes stored and the garage said it was fine!!!!!
If that's the case, that's some garage.

0ph0rce0

dieselbug wrote: »

So you had these fault codes stored and the garage said it was fine!!!!!
If that's the case, that's some garage.

I thought id just hook up the computer to it to check and they are the codes that came up.

It was Atlas Auto service, They told me the car was in grand nick and it was well looked after and ever since it left their care, its been rough as ****, i could feel it as soon as i started the car outside the place but it was cold and thought the oul engine just needed warming up, obviously not.

Technoprisoner

your car is showing a lambda sensor problem...it is also showing a map sensor problem...these will both cause the symptoms you are explaining. ie lack of power and high fuel consumption.

0ph0rce0

Just pulled this bad boy out and stuck in the new one.

The temp gauge is staying where it should finally and shes running a bit smoother but still some knocking..

Maybe i've been driving with a ****ed thermostat so long thats its knackered something else.

But still its a bit better

I give up :mad:

[IMG][/img]

[IMG][/img]

Toyotafanboi

pop it into a glass of boiling water and see if it opens or not. then you'l know.

you seem to be repeatedly missing points about the MAP and o2 sensor that may well sort your problem. or perhaps post a video of the noise.

0ph0rce0

Toyotafanboi wrote: »

pop it into a glass of boiling water and see if it opens or not. then you'l know.

you seem to be repeatedly missing points about the MAP and o2 sensor that may well sort your problem. or perhaps post a video of the noise.

I've changed the o2 sensor, so it just leaves the map.

I wont give up yet, i'll change it out and then i'll give up

Toyotafanboi

what year is the punto? did you clear the faults to see did they return? did you check the voltage movement of the new o2 sensor?

0ph0rce0

Toyotafanboi wrote: »

what year is the punto? did you clear the faults to see did they return? did you check the voltage movement of the new o2 sensor?

its a 2000, I did clear the faults last time i was hooked up, havent checked since, no lights on dash but i'll hook it up again to see what comes up.

I havent a clue about cars so wouldnt know about the voltage thing, i hooked it up to the computer and there was a graph for the o2 sensor which was going up and down like crazy.

Im a noob

0ph0rce0

Toyotafanboi wrote: »

what year is the punto? did you clear the faults to see did they return? did you check the voltage movement of the new o2 sensor?

Just hooked her up to the computer there and the voltage of the O2 sensor (Bank 1 Sensor 1) is fluctuating up and down between voltages of 0.1-0.2 up to 0.6-0.7


And the (Bank 1 Sensor 2) Just stays idle

I'm guessing this is all good.

galwaytt

...not trying to be the harbinger of doom, but if MAP isn't it, I think a head gasket might be something to look at. You did mention the coolant was topped up lately.

I only say this as I've just gone through this with my Seicento and the last thing I'd have suspected on mine was the HG, but it is what cured mine.....

0ph0rce0

galwaytt wrote: »

...not trying to be the harbinger of doom, but if MAP isn't it, I think a head gasket might be something to look at. You did mention the coolant was topped up lately.

I only say this as I've just gone through this with my Seicento and the last thing I'd have suspected on mine was the HG, but it is what cured mine.....

I was hoping it wasnt that haha, but its my final guess too, have a mate that will do it on the cheap so all good.

Cheers to all for the info and help

danwhite88

Hi OP, I was having similar problems with my Fiat Punto 2003 (Same model as your 2000.) the high revs, loss of power and using up alot of petrol.

I had someone from AA come out and he thought the MAP sensor needed cleaning so cleaned that and problem was still there. After few days and going to different garages for opinions they recommend changing the throttle body (or cleaning it) so went to a scrap yard picked up a throttle body for €30 and fitted it yesterday in less than an hour and car is back to 100% my MPG has start going back up towards 40s that I had before this problem started. This maybe the same as your problem but I'm not sure as I'm no mechanic.

Hopefully this will help.