Title says it all really. We have a 1.4 8V (80k on the clock) which has been fine up till recently. However I noticed it was actually slower when warmed up then when cold and now it's getting worse. I changed the thermostat and temp sensor about a year ago which cured the temperature gauge problem. There isn't anything showing when I plug the code reader in either. Any ideas please?

Edited 4 May, 201511 yr by crickleymal

They're iceberg levels of performance when cold, let alone hot! Could be signs of a coilpack degrading due to the heat?

It used to be quite nippy. I would have though a degrading coil pack would cause a misfire not sluggishness?

It used to be quite nippy.

 

I have the same model. It's actually quite perky for what it is.

Mine was God awful how slow it was, and I had two different engines in it (first one blew the hg) another possibility could be a dodgy temp sensor (even though recently replaced) was it scanned with a generic code reader? Might be wise to get it on vag com and see what temp sensor is reading?

I can't complain about my 68bhp 1.4 8v mpi. It always gets me home with a huge smile on my face.   It's a petrol engine, shouldn't make any difference, -25 or +40, it's the same.

Edited 6 May, 201511 yr by Alexandru

Replaced the spark plugs and it's improved a bit. I'll get a S/H coil pack from the scrappy's later and give that a whirl.

Mine was God awful how slow it was, and I had two different engines in it (first one blew the hg) another possibility could be a dodgy temp sensor (even though recently replaced) was it scanned with a generic code reader? Might be wise to get it on vag com and see what temp sensor is reading?

Yes generic code reader but the temp gauge is reading normally for what it's worth. Is there another temp sensor? If so where is it cos I've heard there is one but Haynes is useless?

 

This was reasonably nippy for such a small engine, I suppose it depends on what your expectations are.

Edited 6 May, 201511 yr by crickleymal

Yes generic code reader but the temp gauge is reading normally for what it's worth. Is there another temp sensor? If so where is it cos I've heard there is one but Haynes is useless?

This was reasonably nippy for such a small engine, I suppose it depends on what your expectations are.

There is only one actual temp sensor but it has 4 pins, two out to the guage and two to the ecu, so it may be that it is still giving a false reading to the ecu. Finding someone local with vagcom may be the way to go.

I think I had higher expectations because I came from two cars that were fast for their size

I've always said these cars feel a lot faster than they really are. Aaand in some terms they may be safer this way... imho.

There is only one actual temp sensor but it has 4 pins, two out to the guage and two to the ecu, so it may be that it is still giving a false reading to the ecu. Finding someone local with vagcom may be the way to go.

I think I had higher expectations because I came from two cars that were fast for their size

Oops meant to add slome text in here, damn smart phone

Edited 6 May, 201511 yr by crickleymal

There is only one actual temp sensor but it has 4 pins, two out to the guage and two to the ecu, so it may be that it is still giving a false reading to the ecu. Finding someone local with vagcom may be the way to go.

Interesting, might well be worth swapping the sensor.

 

And mine only has two wires going to it.

Edited 6 May, 201511 yr by crickleymal

I assumed it was a 4 pin one, maybe its only a two pin so disregard what I said lol