Swapped a 1999 420A engine into a 1995 eclipse (also a 420A) and we have no spark. We started by checking the cam sensor and it is working properly it is upside down from the 95 but the ASD relay is operating so I assume it is intalled correctly for the 95 PCM. The crank sensor is also working properly the only thing we can't get is spark. I have placed a voltmeter on the connector going into the coil pack and the center pin gets 12V, then when measuring from center pin to either outside pin when cranking the voltage measures from -4V to 6V (negative 4 to a positive 6).

I just wanted to provide an update for anyone else who may have a similar problem, we ended up with two faulty crank position sensors, the one that was in the replacement engine and the one that was in the orriginal engine. Even though they both tested good (even had a mechanic confirm) they were somehow faulty. Once we installed the new crank sensor the car started just fine. On a side note the discussion about the cam sensor being installed plug up or plug down, this will likely get an argument but we did determine that the cam sensor can be positioned either way and the car will start and run, pass all diagnostic testing with a analyzer and perform the same. Again I am sure this will get an argument but I can assure everyone that in our car it did work. Last thing I wanted to mention is that there appears to be multiple wiring diagrams for the 95-99 eclipse, after searching alldata we found one that matched our car, I strongly suggest good research for anyone who attemps to do what we did. Thank you to dusty for trying to provide us with help, your efforts helped us prove our PCM was good. I just wanted to provide an update for anyone else who may have a similar problem, we ended up with two faulty crank position sensors, the one that was in the replacement engine and the one that was in the orriginal engine. Even though they both tested good (even had a mechanic confirm) they were somehow faulty. Once we installed the new crank sensor the car started just fine. On a side note the discussion about the cam sensor being installed plug up or plug down, this will likely get an argument but we did determine that the cam sensor can be positioned either way and the car will start and run, pass all diagnostic testing with a analyzer and perform the same. Again I am sure this will get an argument but I can assure everyone that in our car it did work. Last thing I wanted to mention is that there appears to be multiple wiring diagrams for the 95-99 eclipse, after searching alldata we found one that matched our car, I strongly suggest good research for anyone who attemps to do what we did. Thank you to dusty for trying to provide us with help, your efforts helped us prove our PCM was good.

I just wanted to provide an update in case anyone else is haveing the same problems. We found that we had two faulty crank sensors. Surprisingly they both tested like they were good (mechanic confirmed our work for a fee) but when the mechanic put another crank sensor in the car started and ran fine. On a side note I wanted to provide an update on the cam sensor position, there were a few places on the internet that stated you could have the cam sensor positioned plug up and on here it was discussed that this simply will not work. On our car we were able to start, run, analyze and drive the car with the cam sensor plug up or plug down with no change. I know this will get an argument but it did work this way for us, I imagine this is why it is not keyed to fit only one way. I still want to say thanks to dusty for providing us with additional wiring information, we finally proved that our PCM was working just fine. I will add that we did have to get a few more diagrams from alldata to figure out why our car has 4 relays where all the information we had seen showed only two or three relays on the firewall. I would strongly recommend that anyone attempting an engine swap with this car look at the different manuals before deciding on which one to buy, I won't promote one over the other but I know I sure wish we wouldn't have bought the first manual.

Again thank you dusty for your help and information we saved buying a PCM from your info! I just wanted to provide an update in case anyone else is haveing the same problems. We found that we had two faulty crank sensors. Surprisingly they both tested like they were good (mechanic confirmed our work for a fee) but when the mechanic put another crank sensor in the car started and ran fine. On a side note I wanted to provide an update on the cam sensor position, there were a few places on the internet that stated you could have the cam sensor positioned plug up and on here it was discussed that this simply will not work. On our car we were able to start, run, analyze and drive the car with the cam sensor plug up or plug down with no change. I know this will get an argument but it did work this way for us, I imagine this is why it is not keyed to fit only one way. I still want to say thanks to dusty for providing us with additional wiring information, we finally proved that our PCM was working just fine. I will add that we did have to get a few more diagrams from alldata to figure out why our car has 4 relays where all the information we had seen showed only two or three relays on the firewall. I would strongly recommend that anyone attempting an engine swap with this car look at the different manuals before deciding on which one to buy, I won't promote one over the other but I know I sure wish we wouldn't have bought the first manual. Again thank you dusty for your help and information we saved buying a PCM from your info!