idle problems!! suggestions???

[Mazdamarine1723]

Hey everyone, well i just got my car back today cause i put new 9mm Nology Hotwires in my Mazdaspeed Protege cause it was having serious idle problems, it was suggested that i had a cut in my old Sparkplug wires which cause the bad idle cause the spark in one of my chambers wasnt grounding so i replaced the wires but on my way home it had a rough acceleration and would sputter occasionally, but later on in the day i drove it again and had no problems except for when i braked then my idle dropped alittle then went right back up again, could it be my ECU adjusting to the new wires or is it somthing else???

 

[AcolyteMSP]

Sorry I'm just cutting and pasting from the other guys post.
I wanna help as much as I can but just don't have the time.
Trying to fix my own MSP

That particular topic has 3 general solutions for most cases.

Clean MAF
Clean EGR
Clean IAC

This could also be a vacuum line issue.

Id try those 3 things first and then reset the ecu after your done
(might as well you'll have the negative battery terminal off anyway)

 

[peajay]

first guess is vac leak.

 

[jeg0024]

Searching may also help.

 

[Andrewsmc]

MSP's just have idle problems, alot of the solutions suggested only work for a while in most cases, Unless it was a vac leak. Ihave 2 and they both do it. Ive seen all the threads for fixing it and they only seem to work for qwhile as i have done a few myself.

 

[Andrewsmc]

eitherway welcome to the forums