My van had been sitting most of the winter -took it out for an emission test and it failed. The mechanic thought it might be to much fuel being dumped to the injectors and the fuel regulator may be bad.  Here are the readings     15 mph    limit    Result
                                                                    HC ppm    155      477
                                                                   CO%         1.31     13.29
                                                                     25 mph
                                                                                    151      511
                                                                                     1.68     13.12
Any suggestions on where to start?
Thanks , Ned 87 Vanagon Westy

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