Chrysler Repair: 1989 Reliant 2.5L wont start, code translator, engine controller

Question
QUESTION: Hello,

I have a 1989 Reliant K 2.5 LE model 107,000 miles.  Three weeks ago after it warmed up it died, it would crank over but not start till it cooled down.  I have replace every thing I can think of and NO LUCK.  It is not overheating at anytime.  I would be very thankful for your help in this manner.



Thanks,

Clyde

ANSWER: Hi Clyde,
Tell me what have you replaced?
I would suggest you get the fault codes that are stored in the engine controller. Use the ignition key:"on-off-on-off-on and leave on" doing that in 5 seconds or less. 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 the count to assure accuracy. Then combine the counts in pairs in the order of appearance to form the 2-digit fault codes. The last code is always 55 because it means end of readout. Then go to www.allpar.com/fix/codes.html for a code translator. Then write back for specific suggestions.
Roland
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---------- FOLLOW-UP ----------

QUESTION: Hello Roland,

I have changed the computer,TPS,and thermostat.  There are no codes.  After the car dies for up to 20 min the coil will have no power when the car sits for 20 to 25 min it will restart and run for about 10 min. before it dies.

Clyde

Answer
Hi Clyde,
Do you mean you don't even get a code 55? If so, then either your check engine light doesn't work or you aren't doing the code readout correctly, so re-read the instructions if there are truly no codes.
I suspect that the Hall-effect spark sensor in your distributor is breaking down, or your ASD relay is weak and failing to maintain power to the coil, more likely the former than the latter. That is a code 11 if you can get a code but in any case that is my suspicion. They cost about $40 and are easy to install. They begin to fail by doing so as they get warm, and then recover as they cool only to fail again. The ASD relay won't close to power the fuel pump and the spark coil unless that sensor is working. The spark coil is another possibility, but if you check the + post of the spark coil for voltage when you are cranking it when it won't start, and you find no 12V, then you can't blame the coil. But if the coil has 12V when you are cranking then I would suspect the coil is similarly failing as would the sensor. But it isn't very likely.  
Roland
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