Test before cleaning

Test after cleaning

If you take a look at the injectors I was provided you can see the part number on the stem and the housing is pink as shown above.

Upon closer examination you see the part number is 0-280-150-449, which from all accounts are injectors for the F355 5.2 Motronic engine.

If I look at this site:

https://aussieinjectors.com.au/injector-by-number/

I see:

I also found a local dealer for Bosch injectors and received this response to my query:

“unfortunately the Ferrari injector 0280 155 013 are discontinued without replacement or supersession.

The 0280 155 003 is a different generation injector and not a direct replacement”

As for the 0280 155 869 injector I am not sure so have asked the production plant for some clarification if this is available/ suitable for a 355.

So it seems that the part 0-280-155-003 is now also something that isn’t suitable. The stats for that are:

which now only leaves 0-280-155-013

and maybe 0-280-155-869

Thus, I am looking for this:

with the original part number 0-280-155-013

My quick examination of these on the Internet is not looking cheap. But the search continues.

So I went and bought some replacement injectors as shown above. Unfortunately, this is the response I received from Ferrari when I took them there to be checked:

We have checked those injectors you have supplied us. Knee jerk reaction – they’re different, they have pink housings opposed to the standard orange. Checking the bosch numbers on them and they are different there again. These ones are 0280 150 449 which I don’t believe are compatible?

Checked anyway to see differences:

– O ring height/ position is different between OEM and supplied injectors

– Rated impedance is different, 15.5 ohm for OEM vs 16.4 ohm on supplied injectors

– Injector nozzle is different – OEM is pintle type, supplied are multi point

– Flow testing differently as well, OEM are around 82-83mm over 15 seconds, vs only 75-76ml on supplied ones.

They may physically fit, however given the differences, I don’t believe it would be an appropriate replacement.

The bosch numbers on the original injectors is 0280 155 013

According to a quick look on Internet:

• 2.7 0280 155 013 15.4 Ohm Single Spray; 0 280 155 003 appears to be identical to 013, all parameters are same and both have 291 ml/min static flow at 3 Bar
• 2.7 0280 155 869 14.4 Ohm Dual Spray, slightly higher flow than the above two, 305 ml/min static flow at 3 Bar (I do not know the VIN/year of change)
• 5.2 0280 150 449 15.9 Ohm Dual Spray, 267 ml/min static flow at 3 Bar possible alternative
• 5.2 0280 150 786 15.9 Ohm Single Spray, 260 ml/min static flow at 3 Bar (but it has single spray pattern)

So it appears the ones I found are 0280 150 449 which seem to be for a 5.2 Motronic engine not a 2.7 as I need. Seems I need any of these:

0280 155 013

0280 155 003

0280 155 869

What a challenge this is proving to be.