Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Hello. I have a 01 Nissan Xterra 3.3 engine. 201k miles. Installed a lower mile engine in the car. Because the other was on its last leg. But it ran. Now new issue. Crank no start. Have fuel, spark, rpm signal. Still not starting. Just spins over.
You have fuel and spark?? Maybe the timing is off. Do you have a 5 volt reference? Maybe the injectors are stuck shut from sitting in the used engine. Try running it off alternative fuel source?
I agree with Cheryl, try an alternate fuel source. Carefully. :silly: I say carefully because if the distributor is installed out of time, you may get a nice fireball in your face.
You could also use a timing light to verify spark is happening close to TDC.