1991 Honda Prelude Check engine light comes on when idle.!

1991 HONDA PRELUDE
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PRETTYPREE
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Engine Performance problem
1991 Honda Prelude 4 cyl Front Wheel Drive Manual 244xxx miles

swapped the moter out at 195xxx.
when at a idle the check engine light comes on.
if i turn the car off and back on the light is off.
when i rev the engine a little the light stays off but as soon as i let it idle the check engine light comes on. please help me.
Oct 4, 2010 at 3:50 PM
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RASMATAZ
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Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.
Oct 5, 2010 at 3:00 AM