[911FL]

Hope someone can help here. I just had a valve adjust and an oil pressuure sender (idiot light) replaced due to an oil leak. The tech used degreaser to clean up the topside and then sprayed a "protectant" (an oily smelly film) all over the engine compartment. I picked up the car yesterday afternoon and it ran great (he did say it wouldn't start at one point following the degreasing and messed with the ref sensor and speed sensors and then it fired up). Now it won't start. Cranks but won't fire. I cleaned inside the dist. cap and checked all the plug wires, even changed out the DME fuel relay. At a loss, and quite unhappy - beautiful day here in Florida and can't even enjoy it. Thanks for any help at all.