I am going to look at a XJ that is for sale. I talked with the owner and he can't afford to pay the mechanic to work on it anymore so he is cutting his losses and buying another car. He has owned it for 4 years and three weeks ago it started blowing fuel pump fuses. He kept replacing them and then it eventually quite blowing them. It still would not start so he took it to mechanic. The mechanic found motor oil in the PCM?? Ya weird he was baffled to because he said the engine has no major oil leaks. So they replaced it with a junkyard PCM and still no spark or fuel. They replaced CPS and still nothing. He said that's all he could afford and the mechanic said it maybe another sensor that is to blame. The mechanic has checked the wiring harness and found no issues with it.
Any other sensor that would cause no fuel or spark? Any ideas or what to look for when I go to check it out?