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my car when under stress just boggs...

  #1  
Old 06-08-2006, 10:19 PM
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can anyone help me because i have checked the compression and the fuel pressure and they both seem to be fine. by the way i have a 1989 i-mark rs. i dont know much abouit fuel injection so i am open to any help at all thanks.
-travis-

 
  #2  
Old 06-12-2006, 03:19 PM
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what was the compression an fuel psi reading you got?


it should be at least 50 for fuel pressure at alll times.an compression should be 150psi all clyinders.you may want to do a exhaust back psi check also when hot an cold.converter may be clogging
 
  #3  
Old 08-26-2006, 08:06 PM
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IsuzuGuru is right you might want to do a vacuum test as well, if the vacuum doesnt go back to normal if u rev it at 2-3k rpm for 5 sec'ishmost likely u have a clogged cat or too much restriction in exhaust system.
 
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