Technical Panda (169) 1.2i MR2006 - error P1220 issue (vs. oil level)

[pavproch]

Fiat Panda 1.2i (44kW) 4x4 Climbing MR2006, act. odo approx. 195k km
VIN: ZFA 16900000622218

Hello everyone,

Searching for advice/clues what and when... The P1220 error (throttle signal implausible) started occuring (rarely) around 2009 (ie. „almost“ new car), thru the years gotten more often occuring/annoying (my diagnostics alway showing P1220 ONLY, no other faults, easily erasible).

All related components (ie. Throttle itself, incl. Sensoring, gas pedal etc.) replaced with new ones, no effects.

Throughout the years I happened to come to following realisation: During each (regular á 15kkm) service the oil (Selenia 20k) always filled acc. to manual = 2,8l, causing frequent P1220 error occurence. But, if/when I suck off approx. 0,2 to 0,3l of oil (ie. to the lowest level at its measuring rod), it (P1220) will NEVER occur ?!?!?

Even though I am an mechanical engineer myself, this is wtf NOT undestandable for me, how it is possible to happen (to be related)?!? Upon EPER this engine in Panda does NOT have a crankcase oil breathing valve (unlike the same engine in Punto).

Many thanks in advance for clearing this for me.
-pp-

 

[koalar]

I don't see the correlation between

THROTTLE POSITION SENSOR 1/2 CORRELATION

And oil level

If you put the 300ml of oil back in does P1220 occurre again

 

[pavproch]

I don't see the correlation between

THROTTLE POSITION SENSOR 1/2 CORRELATION

And oil level

If you put the 300ml of oil back in does P1220 occurre again

Yap, it immediately occurs again, often.

 

[koalar]

Fill it back up

And disconnect the crankcase breather and see it occurs again