Chrysler Repair: grand voyager 93: no start, grand voyager, plug cap

Question
my van stopped working. it the starter works but it won't start. I think there;s no spark going to the spark plug. someone told me is the ECU not sure what;s wrong. any suggestions will be great appreciate it.

Answer
Hi Javier,
You have the ability to do some self-diagnotics using your ignition key: turn it "on-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. Then watch the check engine light which remains 'on' to begin to flash, pause, flash, etc. Count the number of flashes before each pause. Then repeat to be sure the counts are accurate. Then group the numbers in pairs in the order of appearance to form 2-digit fault codes. The last number should be 55 because that is the code for 'end of readout'. Then go to www.allpar.com/fix/codes.html  or write me back and we'll go from there. Also, tell me which engine you have. Also, check to see if you have spark while cranking: remove a spark plug cap from one of the spark plugs, insert a screwdriver with a plastic handle so that the metal tip touches the wire inside the cap. Then hold the cap and the insulated handle so that the screwdriver shaft is 1/4" from the cylinder hear while a helper cranks the starter. Watch to see whether a spark jumps the gap for a full 5 seconds of cranking or not.
Roland