Hesitation and shake FINALLY SOLVED!!!! WOOHOO!!!!!
So almost six months later, and alot of hair pulling and swearing.... the issue is solved! Te problem was..... drum roll please........ faulty IAC valve motor!!!! Woohoo!!! Was not properly responding, would fizzle off and on in the slightest degree throwing off the Air / fuel mixture ever so slightly and causing the shake and hesitation. Swapped it out and problem is GONE!!!! Tore around the streets to celebrate and smoked a riced out Accord with confidence! ( and the kids in the car too, who had to be bribed with candy into not telling thier mother! )
Thank you everyone for your help!!!!!
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If you're not first, you're last! 35th Anniversary Mustang 3.8 Manual Transmission True Duel Flowmaster Exhaust. Cold Air Intake Circle Track Clutch Kit
Thanks everybody! Yes, it has been bothering me forever! I was ready to put this horse down!
I had previously cleaned the IAC valve twice before, and then ruled it out of the equation.... But after process of elimination, just kept coming back to it.
It was the only thing wrong with the car when I bought it... a case of bouncy idle and low idle on hard braking, which was solved with the first cleaning.... but not everything can be solved with brake clean so after all signs kept pointing back to it, just replaced it.
There really were no tests I could perform without checking voltages against a working IAC, so unfortunately it was just a really long and frustrating process for which I have not learned a sure fire method of helping others determine this as there problem.... but, as a team, we seem to be able to solve just about any problem... eventually
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If you're not first, you're last! 35th Anniversary Mustang 3.8 Manual Transmission True Duel Flowmaster Exhaust. Cold Air Intake Circle Track Clutch Kit
when i idol my RPMS like to randomly change from 500 to 1500 and back. do you think it could be a similar problem? i was told i need to clean my RGI valve but i have no idea what what is even after i google-ed it
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2000 V6 Mustang
Boss Audio head unit with 800 watt subs
18" black and chrome rims wrapped in low profile racing tread
CAI and Projector headlights
when i idol my RPMS like to randomly change from 500 to 1500 and back. do you think it could be a similar problem? i was told i need to clean my RGI valve but i have no idea what what is even after i google-ed it
do you mean EGR valve? ive never heard of a RGI valve.... not saying its not out there but ive never heard of it as far as i remember
he said RGI. a friend of a friend ran codes on my mustang and after looking them up he said its eather the RGI valve or the O2 sensor. i asked him to run codes becuase of my shaddy idols and im averaging 15 mpg in my V6 (and i dont stand up on it at every opertuninty)
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2000 V6 Mustang
Boss Audio head unit with 800 watt subs
18" black and chrome rims wrapped in low profile racing tread
CAI and Projector headlights
he said RGI. a friend of a friend ran codes on my mustang and after looking them up he said its eather the RGI valve or the O2 sensor. i asked him to run codes becuase of my shaddy idols and im averaging 15 mpg in my V6 (and i dont stand up on it at every opertuninty)
you misheard him, no such thing exists.
if you have a code dealing with exhaust, more than likely he said EGR valve.
Thanks everybody! Yes, it has been bothering me forever! I was ready to put this horse down!
I had previously cleaned the IAC valve twice before, and then ruled it out of the equation.... But after process of elimination, just kept coming back to it.
It was the only thing wrong with the car when I bought it... a case of bouncy idle and low idle on hard braking, which was solved with the first cleaning.... but not everything can be solved with brake clean so after all signs kept pointing back to it, just replaced it.
There really were no tests I could perform without checking voltages against a working IAC, so unfortunately it was just a really long and frustrating process for which I have not learned a sure fire method of helping others determine this as there problem.... but, as a team, we seem to be able to solve just about any problem... eventually
Congrats on solving your issue!!
I hope I can solve mine soon, because I really have not found the time to do so
well... Godspeed!! and btw, nice job pwning dat accord!
i´m from Guatemala, in a few moments i will introduce myself formally,
congrats MAt
i have the same problem at this time, yesterday i change 4 oxygen sensor, spark plug wires and change the spark plug..
it ran very goo yesterday, but today my Engine Light came up to my dashboard again ... damn!!!.. at noon i will connet the scanner to look for the problem..
I hope I can solve mine soon, because I really have not found the time to do so
well... Godspeed!! and btw, nice job pwning dat accord!
We are here to help you out once you get the time... and thank you! The Accord owner was not too happy especially with my kids waving at him out the rear window!
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If you're not first, you're last! 35th Anniversary Mustang 3.8 Manual Transmission True Duel Flowmaster Exhaust. Cold Air Intake Circle Track Clutch Kit
lol i hope u have a big sign on ur rear window that says "ya, ur ricer just got smoked by a mustang, and YES its a v6 " i want to change out my rear view mirror glasses to read "objects in mirror are foreign junkers" but ya man good to hear i always start with the IAC myself took me about 3 yrs to figure out what my issue was on my first ford truck...
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"Its not about what you can BUY, its about what you can build" anyone can buy a really cool car, but u dont ever get the satisfaction from it as you would building it yourself 1994 Mustang GT 5.0/T5 Sold 1998 Mustang GT 4.6/T45 *soon 5.4 S/C* Flows cat-back, CAI, Ford Racing 3.73 gears, Torsen Diff, short throw shifter
Hesitation and shake FINALLY SOLVED!!!! WOOHOO!!!!! 
Tore around the streets to celebrate and smoked a riced out Accord with confidence! ( and the kids in the car too, who had to be bribed with candy into not telling thier mother! ) 
congrats matts
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but ya man good to hear i always start with the IAC myself took me about 3 yrs to figure out what my issue was on my first ford truck...
