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The coupled map lattice by Olami {\it et al.} [Phys. Rev. Lett. {\bf 68},1244 (1992)] is ``doped'' by letting just {\it one} site have a threshold,$T^{*}_{\rm max}$, bigger than the others. On an $L \times L$ lattice withperiodic boundary conditions this leads to a transition from avalanche sizes ofabout one to exactly $L^2$, and after each avalanche stresses distributes amongonly five distinct values, $\tau_{k}$, related to the parameters $\alpha $ and$T^{*}_{\rm max}$ by $\tau_{k}= k\alpha T^{*}_{\rm max}$ where $k=0,1,2,3,4$.This result is independent of lattice size. The transient times are inverselyproportional to the amount of doping and increase linearly with $L$.Comment: 12 pages uuencoded postscript, including figures. Accepted for  publication in Physica Scripta

Strong ordering by non-uniformity of thresholds in a coupled map lattice