- This topic has 13 replies, 2 voices, and was last updated 3 years, 9 months ago by
.
-
FIAT: Failed Italian Automotive Technology or Fix It Again Tony
har har
but back to getting the FIAT 500 working as it was intended. (Fixed It And Tested) In a completely sane world, madness is the only freedom (J.G.Ballard).
You need to login in order to vote
Totally agree, regens should only occur when engine and exhaust are upto temperature, hopefully the DPF needs a good run to clear out the soot etc. Otherwise remove the DPF from car and cleaned. I plan to plug in my ODB11 Fault code reader this week to see if indeed any faults (sensors – injectors ) are identified also.
(it is a Fiat) but does look good
For anybody else reading this thread, – If you ever have the message ‘antipollution filter clogged‘ this means that the DPF Regeneration process has been interrupted 3 times before it has completed its cycle (engine turned off) and usually a 20 minute drive on the motorway at high revs will allow a DPF regen to be fully completed.
In a completely sane world, madness is the only freedom (J.G.Ballard).
You need to login in order to vote
So I plugged in my Autel 519 OBD2 Reader this morning and no fault (Permanent) codes where identified, the Autel 519 did identify DPF had a flow restriction problem and an Fiat Specific code was also show $80 which after Googling seems to relate to EGR valve .
The DPF warning light is still showing so looking most lightly a DPF / Regen / Clean DPF issue.
Time to order a bottle of STP (Diesel Particulate Filter Cleaner) and a Spray can of Wynns Diesel EGR and Air Intake Cleaner, to see if a good run and spraying the Air intake hose (beyond the air filter) will bring the Fiat back to a normal running condition
In a completely sane world, madness is the only freedom (J.G.Ballard).
You need to login in order to vote
Well I added the STP (Diesel Particulate Filter Cleaner) to the fuel tank (half full) and sprayed the Wynns Diesel EGR and Air Intake Cleaner into the Air Intake hose (before the mass airflow sensor) and took the Fiat for an hour drive down the motorway and back running at around 3000 RPM.
The DPF warning light is now off and will just have to see how long this lasts and if any more white smoke appears from exhaust
In a completely sane world, madness is the only freedom (J.G.Ballard).
Liked by:
You need to login in order to vote
Most Diesel vehicles including Fiat can do what is called a forced regeneration (burning program) which can be set-up by expert equipment etc.
Alas my ODB2 reader cannot do this, but a good drive with STP (Diesel Particulate Filter Cleaner) in tank to help lower burning temperature and get the exhaust to temp will do the same task (almost)
Alas – this is my daughters car, whilst she was driving up and down the motorway to UNI, which is hundreds of long distance miles then no issues with DPF and Regens etc.
Alas since Covid, a lot more time at home (which is good) but Fiat 500 doing lots of very short journeys, hence problems as diesels are not designed for lots of short journeys, especially the older diesels
Will be interesting to see if in a week if the DPF light is still off and will check hoses if light comes back on
In a completely sane world, madness is the only freedom (J.G.Ballard).
You need to login in order to vote
A week later and the DPF light is still off and still no signs of any white smoke from the exhaust, it has rained a couple of times this week so we can now remove rain causing the exhaust white smoke also.
So seems adding the STP Diesel Particulate Filter Cleaner to a half tank of fuel and a motorway journey cured the Fiat’s DPF light coming on and white smoke from exhaust problem, DPF for now is clean
In a completely sane world, madness is the only freedom (J.G.Ballard).
You need to login in order to vote
but back to getting the FIAT 500 working as it was intended. (Fixed It And Tested) 
- You must be logged in to reply to this topic.