Q – My ‘89 Carrera will not start and I have checked everything. I have also taken all the advice of the web experts and fired volleys of parts from the “parts cannon”, still to no avail. I have spark, fuel and the engine cranks normally. I am fit to be tied, what do you recommend? –Chuck

A – Does it start on ether? If the answer is yes, you need to verify that strong signals being produced by the sensors and see that the injectors are receiving a pulse. Since your car does not have self diagnostics, you may have taken it as far as you can. Antiques like yours sometime require sophisticated test gear that is out of the price range of shade tree mechanics. At least you might not need to buy many more parts! –MC