No, no, no. I know what the R16/1 does, as you said, it changes the ignition maps, it does nothing about the fuel.

I'm really talking about the R17/1 plug which is right next to the OVP relay. R16/1 is right next to the EZL on top of the left wheel fender. R17/1 is connected between pins 22 and 7 ( ground ) of the ECU.

As you said r16.pdf explains the different ignition retards you get when changing the resistance. On the other hand. I'm trying to determine what does the explanation on r17.pdf means.

Thanks anyway,
Octavio.

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87 Euro 190E 2.5-16
91 SportEvo E30 M3