Where r timing marks on exterior of engine . I pulled distributor and now its off time.

you will have to take the timing chain cover of and there are two marks that have to line up the pic below is a cavalere but they are similar ignition systems and it is TDC. DTC stands for diagnostic trouble codes I knew what you meant though

I can't afford to do that. Any other idea's

that's all you can do you should have thought about that before you took the distributor off if you can do it by yourself the cost will be less unless you mess something else up