Hi all,

I bought a new set of Bosch dark green 803 injectors for my dads Christmas present (to suit a 4x4 saph') but these give a misfire at 4000rpm at 14psi

After swapping over each injector with used ones, i'm sure that all 4 new ones are defective by similar amounts, these were removed from a sealed packet by me, not left exposed.

This brand new set are all exactly 4.5ohms resistance.

I have one used set all exactly 4.8ohms that have worked perfectly for 35,000 miles on a 2wd saph' and work perfectly on the above 4x4.

Can anyone please tell me if the differance in resistance would change the fuelling?

If so, can someone please (the more the merrier) measure theirs and tell me what their EXACT resistance is.


Basically, the person i bought them from will not (as yet) exchange the injectors under any circumstance
Also, i have a mate in Norway that bought 8 from same supplier, so want to make sure his are ok too (he's checking the resistance of his now).


Please help,

Cheers, Stu