Hi all

Can anyone provide me with any of their Fiat ECU scan parameter readings ? This is purely for comparison purposes. I have some ongoing issues and I just need to eliminate bit by bit parts and components in the way.

These are my readings via Fiat ECU scan, can anyone or does anyone know if these readings are normal or abnormal?

FUEL PRESSURE – 300 BAR
FUEL PRESSURE SIGNAL – 1.30..V
FUEL PRESSURE REGULATOR – 15.77%
BOOST CONTOL SOLENOID – 75%
BOOST PRESSURE – 1.028 M.BAR
ACTUAL EGR – OPERATING RATE - 1%
ENGINE TEMPERATURE – 81.6 c`
ENGINE TEMPERATURE SIGNAL – 1.408 VOLTS


Any input will be most appreciated

is your boost pressure m.bar or bar. if its bar then its around 17psi which i think is about right. My remapped jtd reads 22psi which would give it the 50hp boost (guide is 10hp for each psi increase) that its supposedly got.

Thanks for your input

I am sure it was measuing at BAR, I will double check this and I will also post up some graphs of the pressure readings with the car in movement as these were taken at idle.
Do these fuel pressure readings match any of yours? Before and after your remap? Do you know..

Looks fine, what problems do yo have ?

Hi there Emzo

Glad your input checks these readings OK.
I am encountering excessive pressure building up in the combustion chamber. Oil is being forced through and out of my breather pipes, I have had some advice form Argonought to test out if its oil turbo bearing related or crank pressure related.
I have had a temperamental MAF sensor which was choking my engine, literally , and I was not sure if the fuel injectors or any ohter parts were in the blame also.

I will be posting some more detailed graph readings later on of the cars pressure readings just to make sure all is well.

Ballackcanavaro99 said:

I am encountering excessive pressure building up in the combustion chamber. Oil is being forced through and out of my breather pipes, I have had some advice form Argonought to test out if its oil turbo bearing related or crank pressure related.

Click to expand...

It's kinda the other way around

If piston rings are worn then gasses get past them and pressurize the crankcase which, in severe cases, can force oil out of the breather.

The best way to prove that is with a compression test (high compression is always good )

Ok I will look get on to this, I am more than determined to make the Brooklands fest this year