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Further Idle Speed Too High (P0507) Info Needed
Let me give a quick intro as this is my first ever post!
I have been to several sites searching for a fix to my problem. Nissanclub.com seems to have the best advice from very knowledgeable and gracious members.
I have exactly same problem (with an additon) as described by coquibone14. The suggestions posted by il_signore97 reflect what I have read elsewhere. Here is my situation:
Error code: P0507 Idle speed too high, The reader at AutoZone stated it was the idle speed control valve.
Action: Sprayed throttle body (TB) with TB cleaner. engine off. cleared codes.
Result: still idles high (1700rpm). Once engine reaches normal operating temperature, idle fluctuates from 800-1800rpm approximately every 2 seconds. If AC is on and in gear, idle is ~1000rpm. If AC is off and in gear, idle is ~900rpm. Driving seems mostly normal, but I can tell there is higher than normal engine rpm, engine is less responsive, reduced gas mileage (about 5mpg overall) and slight engine speed increases similar to idling.
Next Action: Replaced with new throttle body, reset code, performed throttle position learn and idle speed learn. The last two actions I did on my own as described in various posts.
Result: EXACTLY THE SAME as with old TB!
Please advise. This is driving me crazy and is very frustrating. Your help is truly appreciated !!!!!! I thank you greatly in advance.