Car Wont Go Over 80Mph

[wayneev]

Hi all,

On way to garage next week as I have a few issues.But id like to have some info first if possible.

Thought id give car a bit of blast ,,Could not get the car go over 80. Car got to 70 no probs and accelerated ok.No warning lites  came on and I noticed it would not go over 4000 revs.Tried it again but still the same.Ive read about map sensors,is it worth buying one.Also how can you locate turbo for visual oonspection of pipes.

Car has been great but it seams to have more faults recently ,it sounds noisy as well and aslo for the first 5 mins when I take my foot OFF the accelaator (in gear or not) I get a tinging noise cant find anything lose.

Still getting 45mpg on motorway fully loaded and roof box,seems a shame to get rid of.1.9tdi

Thanks in advance

 

[BrianH]

Its possible on the diesel to set a speed limit in the ecu - has it always been like this, or a sudden happening?

 

Once its set you can't increase it - you can decrease it, but not remove or increase it.

 

It may be worth having a look through the forum posts and then a look at the right bit with VCDS

[seatkid]

Lack of top end power is a classic symptom of a faulty MAF sensor (mass air flow). Its fitted between the airbox and the concertina pipe. Easy to change.

[seatkid]

Oh, I forgot to add, check your air filter is not bunged up as this causes the same symptom, due to restricted air flow.