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SURGING IDLE

This topic contains 2 replies, has 2 voices, and was last updated by MIKE LESUI MIKE LESUI 3 months, 1 week ago.

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  • #991816
    MIKE LESUI
    MIKE LESUI
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    I HAVE A 99 CIVIC DX MANUAL D16Y7. JUST REPLACED ENGINE WITH ANOTHER D16Y7 FROM AUTOMATIC TRANS. EVERYTHING WENT WELL THEN BOOM IDLE SURGING BETWEEN 1200 AND 1500 RPM. REPLACED AIR TEMP SENSOR 2X IAC VALVE 2X PUT INTAKE MANIFOLD OFF OTHER ENGINE. TRIED BOTH THROTTLE BODIES TPS SENSOR. NO CHANGE. KEEP GETTING CODE P1509 CANT ERASE, YOU CAN HEAR A VACUUM LEAK BUT CANT LOCATE AND ABOUT TO REPLACE COMPUTER. OTHER THAN PURGE VALVE IM OUT OF IDEAS. DONT WANT TO KEEP PUTTING $$ INTO AND NOTHING FIX.

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