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Mar 6, 2003 - 9 posts - 4 authors
71-65-66 NOV 97 Engine Controls - EVAP DTC's P1665 & P1676 Added " that is from alldata as a TSB i dont know what "EVAP" is though.
Free Technical Service Bulletin and Recall Titles for 1998 Buick LeSabre V6-3.8L VIN K ..... 71-65-66, NOVEMBER 1997, Engine Controls - EVAP DTC`s P1665 ...
AutoZone... power circuit is open (check ENG EMISS fuse). Purge solenoid is damaged, or the PCM has failed. TSB 71-65-66 contains a repair procedure for this code ..
well most evap solenoids are either on the back by fuel tank, by differential, or infront by firewall or wheel fender wells which need a lil dissasembly. probably a vacum leak first check ure gas cap that it actually locks and reset code if comes back either a leak to the solenoid or bad connector corrosion maybe.
None of these codes by themselves will prevent the car from starting. I would look over the O2 sensor wiring. Maybe the harness is resting on a hot pipe. You can test the components--the sensor and both solenoid valves. Maybe there is a problem at the canister. Unfortunately, the canister and vent valve are atop of the tank, but you can still hear if the vent valve is closing when you apply ground to the white lead. The p0300 is the most likely code to affect starting. Are you getting sparks? If not, suspect the ignition module under the coils. I drive a 2000 Camaro, so I'm pretty familiar with this model.
CODE P1665 - EVAP VENT SOLENOID CONTROL CIRCUIT MALFUNCTION CONDITIONS.POSSIBLE CAUSES / VENT SOLENOID CONTROL CIRCUIT OPEN SHORTED TO GROUND OR TO SYSTEM POWER / VENT SOLENOID POWER CIRCUIT IS OPEN CHECK THE ENG CNTL FUSE / EVAP VENT SOLENOID IS DAMAGED OR HAS FAILED / PCM HAS FAILED.
EVAP is for Evaporative emissions control system, so no this is not EGR, that is Exhaust Gas Recirculation system, as far as the P1665 goes it is related to the other trouble code P0440, u will need to replace the EVAP system Purge flow control solenoid. This should correct both problems after u replace the part disconnect the battery for 5 min's to reset system.
Hi e_lockley. The description for that P1665 code is EVAP Vent Solenoid Control Circuit Conditions. It refers to the circuit (electrical) of the solenoid.
Do a proper diagnosis, don't just replace the solenoid because the problem may also be with the wiring and connectors leading to the solenoid. Grab a repair manual and do it yourself or ask your mechanic to verify that the part has failed before replacing it.
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