Hi all,

My 2001 Accord V6 has 206,000 miles, idle start have problem when it cold temp outside. Idle start up and down until the engine at stable temp.
it through P0505 code. I tried to clean it, but the problem still happen time to time.
What's your suggestion? order the new IAC valve to replace it? or do more troubleshoot?

Thanks for your advices.

Ericspyder

 

I'll cross-post this as a "PSA - Public Savings Alert": If you are going to replace the I.A.C. Valve, and opt for aftermarket (which I do all of the time with generally good results); do yourself a favor and BUY TWO...lest you get a bad one, and not know it... Having had to bear the time/expense of pulling the original {Denso}, believed bad, and swapping with a Driveworks {AdvaceAuto non-OEM}, I was thrown by exactly the same "hunting" behavior.

Ultimately, forsaking 'what are the chances of both bad?' thoughts, I swapped in the much more expensive OEM part - and PROBLEM SOLVED. Now; I suspect if I had bought a few aftermarkets, one would have worked fine. It's easy to pull and replace, so you can save money there (with not much to the innards, on a near twenty year old car, etc...) - just be aware that you can easily get a DoA part if you don't buy from the stealership.

Be advised - decide up front!