Replaced IAC Now have surging acceleration
#1
Replaced IAC Now have surging acceleration
I Replaced IAC because it was making this weird noise, the noise went away but now I have surging acceleration. I removed the battery let it set an hour, then let it idle for about 20 minutes. The surging is about 90% better but it will still surge from time to time. Usually during town driving. It did pop up a P106 code this morning. Any ideas? Forgot 2001 MPV
#2
I Replaced IAC because it was making this weird noise, the noise went away but now I have surging acceleration. I removed the battery let it set an hour, then let it idle for about 20 minutes. The surging is about 90% better but it will still surge from time to time. Usually during town driving. It did pop up a P106 code this morning. Any ideas? Forgot 2001 MPV
Were you able to make any progress?
#3
Throttle body?
I had the same surging problem in my 2003 Mazda MPV. There were several things going on at the time:
I had a vacuum leak, which was a torn rubber boot, so I replaced that. But the symptom persisted.
then I cleaned out the Throttle body AND the IAC with throttle body cleaner, and the symptom finally went away. No more surging acceleration.
My Mazda also still throws a code P 0031 (oxygen sensor), but that engine light has been on since I bought it a year ago. So I’ve been wondering whether that code has anything to do with creating the surging problem over the long term. (Running too rich causing buildup?) Not sure. But for now, surging is gone.
So you could try looking for vacuum leaks and clean out throttle body too.
I had a vacuum leak, which was a torn rubber boot, so I replaced that. But the symptom persisted.
then I cleaned out the Throttle body AND the IAC with throttle body cleaner, and the symptom finally went away. No more surging acceleration.
My Mazda also still throws a code P 0031 (oxygen sensor), but that engine light has been on since I bought it a year ago. So I’ve been wondering whether that code has anything to do with creating the surging problem over the long term. (Running too rich causing buildup?) Not sure. But for now, surging is gone.
So you could try looking for vacuum leaks and clean out throttle body too.
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