Technical Fiat 500L Diesel 1.3 limp mode issues

[jonsorrl]

I have a 2013 Fiat 500L 1.3 Diesel Multijet. A few months ago the car started to behave erratically, and would routinely go into limp mode. I had the timing chain changed, and eventually a replacement engine (the same engine, but from a Doblo), since my mechanic said that only 3 of the cylinders were working on the old engine.

Problems still recurred, with the engine going in to limp more randomly. The DPF filter was removed and properly cleaned with a high pressure hose, but still the limp problem persisted. My mechanic experimented with bypassing the egr valve, but still no luck.

The ‘check engine light warning’, and ‘oil pressure warning’ icons both showed continuously, so I topped up with oil. I apparently put far too much oil in - my mechanic sucked out the excess oil 4 days ago. The engine now goes into limp mode whenever I stop, or if it goes below 1000 rpm. If I then quickly switch the ignition off and on, it behaves as normal.

Has anyone experienced a similar set of symptoms ? Or have any idea what might be going on here ?

 

[bugsymike]

I have a 2013 Fiat 500L 1.3 Diesel Multijet. A few months ago the car started to behave erratically, and would routinely go into limp mode. I had the timing chain changed, and eventually a replacement engine (the same engine, but from a Doblo), since my mechanic said that only 3 of the cylinders were working on the old engine.

Problems still recurred, with the engine going in to limp more randomly. The DPF filter was removed and properly cleaned with a high pressure hose, but still the limp problem persisted. My mechanic experimented with bypassing the egr valve, but still no luck.

The ‘check engine light warning’, and ‘oil pressure warning’ icons both showed continuously, so I topped up with oil. I apparently put far too much oil in - my mechanic sucked out the excess oil 4 days ago. The engine now goes into limp mode whenever I stop, or if it goes below 1000 rpm. If I then quickly switch the ignition off and on, it behaves as normal.

Has anyone experienced a similar set of symptoms ? Or have any idea what might be going on here ?

Ideally you need a good diagnostic tool such as MES to read all the error codes before a correct diagnosis can be done.
It is possible the DPF is still causing problems and engine ECU is not able to correctly start a REGEN to clean as normal, this often results in poor performance and lots of choking white smoke, but it is only a guess without an accurate Error Code read.
I would advise contacting Gendan a company that supplies MES (multiecuscan) and the correct leads to test your vehicle, I have found them very helpful. With that app/program on your Lap top or Mobile phone and the right connectors you will be able to get information that many MES users on Forum can advise you on, probably for less than the cost of the engine change