Intermittent vtec engagement

[92accordexpower]

As stated earlier
it's NOT a stock ECU

it's a phearable chipped P28 with vtec speed limiter removed.

i was thinking ignitor, it would make sense.

[93twodoorLX]

As stated earlier
it's NOT a stock ECU

it's a phearable chipped P28 with vtec speed limiter removed.

i was thinking ignitor, it would make sense.

and once again people are TRYING to tell you that it MIGHT be your VEHICLE SPEED SENSOR which is NOT the same as speed limiter. speed limiter just means that you cant drive the car over a certain MPH while the vehicle speed sensor(the way that i understand it) has alot to do with that little needle showing MPH on your dash. it makes sense to me being as it SENSES VEHICLE SPEED and it also makes sense that if it were bad it would read a ZERO mph reading from time to time and as it has been stated VTAK will not engage at zero MPH now i want you to read this post TWICE and see if that makes any sense to you.

somebody E-slap me if this doesnt make any sense or im saying it wrong

p.s. ignitor is also a perfectly possible explaination also but look into BOTH

-sean

[92accordexpower]

and once again people are TRYING to tell you that it MIGHT be your VEHICLE SPEED SENSOR which is NOT the same as speed limiter. speed limiter just means that you cant drive the car over a certain MPH while the vehicle speed sensor(the way that i understand it) has alot to do with that little needle showing MPH on your dash. it makes sense to me being as it SENSES VEHICLE SPEED and it also makes sense that if it were bad it would read a ZERO mph reading from time to time and as it has been stated VTAK will not engage at zero MPH now i want you to read this post TWICE and see if that makes any sense to you.

somebody E-slap me if this doesnt make any sense or im saying it wrong

p.s. ignitor is also a perfectly possible explaination also but look into BOTH

-sean

And what i'm saying is...
#1. The ecu not only disables the speed governor, but the VTEC Speed limit, which to my understanding, disables any VSS related vtec disengagement.
#2. The speedo hasn't been doing any jumping, just the tach. If the speedo occasionally didn't work, and thought the car was going 0mph, the ECU would rev limit itself to 5500 rpms, where my 2step is at.
#3. The VSS is a new VSS, seeing as how I just replaced the whole transmission a week ago.

so VSS theory is officially busted.

[NAiL05]

And as I said check your ignitor...for the bouncing tach apparently you missed that part.

[92accordexpower]

yea it's lifetime warrantied through autozone so i'm gonna go pick up a new one tomorrow and throw it in, and see how it is then.

[bruno8747]

How about checking the solenoid like d112 said? Check to see if the screen behind the solenoid is clean. I'm leaning on the solenoid also. Igniter would give wierd problems throughout the power band.

[93twodoorLX]

i mean im glad that all that is the case but for future reference that type of information would help narrow peoples thoughts to a more specific point, i mean.these two statements right here...
#1. The ecu not only disables the speed governor, but the VTEC Speed limit, which to my understanding, disables any VSS related vtec disengagement.
#3. The VSS is a new VSS, seeing as how I just replaced the whole transmission a week ago.....
could have saved me 10 minutes of my life trying to get my point across. i dont have an h22 and dont know shit about phearable.net or what their ECU's do but i do know a technical thing or two that could be helpful providing me and the rest of the guys are given the specifics. sorry for seemingly jumping in your shit about me not thinking you understood. sounds to me like the problem has already been significantly narrowed.

-sean

[92accordexpower]

It wasn't until i was writing my reply that I realized that when i replaced the tranny, a new VSS came with it. But i do appreciate the help

[92accordexpower]

How about checking the solenoid like d112 said? Check to see if the screen behind the solenoid is clean. I'm leaning on the solenoid also. Igniter would give wierd problems throughout the power band.

That's a good idea too, i'll check it out. I'm only leaning towards ignitor because of the crazy tach movement. Which i've experienced before, and turned out to be an ignitor, but never only in high RPMs like that, usually it will do it anytime.

[92accordexpower]

here's a video i just took of a 2nd and 3rd gear pull

[92accordexpower]

it was the ignitor, here's the video with the new ignitor

http://www.youtube.com/watch?v=qaBq7H6Fmbg