How do you know when the computer is out, I drove my car to work and it was fine. Came out to go home and it wouldnt start, I have spark and fuel. The motor is out of a 92 with MAF, but my car has speed density, could that be the problem. I dont know what to check or where to start. Any help would be nice. Thanks Adam

 

Having a MAF engine installed with speed density is not a problem as long as the wiring and sensors attached are for the system. Spark, I'm assuming you checked, fuel....how much pressure do you have in the system? Another thing to check is the injectors pulse, provided you have at least 30psi fuel pressure. A codes scan would also provide more information. LUK/GL