(VID) F20b swap DONE, help me out getting it 100%?

[Dat CB7]

Hey guys, heres the story: Bought a destroyed cb7 a faw months ago. Pulled the engine and tranny after it started smoking on the way home. Went with an f20b to replace it and here I am!

I'm running a phearable chipped p28 for the basemap at the moment. Now the car does run decently at the moment and I'll be posting running vids shortly just need a hand with one issue. It seems the car wants to rev a bit over 2k whenever I open the throttle. It does the same thing if I'm rolling to a stop in gear and I clutch in; revs to around 2k then falls. May it be ever so slightly or wide open, I'm also getting a little pop through the intake when I do. Can you experienced members give me a hand getting this thing sorted out?

Heres a video I just took of the act in question.

View My Video

Thanks!

[Jarrett]

Understand that a basemap is just that, a starting point. Between F20Bs that get imported here to the States there are two different varieties. One has 200hp and the other 180hp, depending on whether or not is came from a manual or automatic car originally. Right away there can't be an all-encompassing F20B tune for a basemap. Add to that mix any other variables such as a header, cold air intake, stacked or gutted IABs and you have enough variations that the tune may not be able to compensate for.

Before any more diagnosis can be done anyone will tell you to get the car street or dyno-tuned first. You're welcome to try any diagnosis methods that one would do an a non-swapped car also such as checking the ignition timing, doing a valve job, checking for oil in the spark plug holes and so on.

[SunkistCB7]

Understand that a basemap is just that, a starting point.

+1

I don't know about the F-series community, but "fear"able is just that - to be feared. I've had multiple friends run their cars (B-series, maybe a D-series too, been a while) run their cars on those chips until they were able to get the car tuned, bad stories..

Tune it or park it or keep it under 3k smh. I'm sure all the accounts cant be blamed on it but better safe than sorry

[Jarrett]

You're absolutely right. I usually take for granted that people know to baby a car on a basemap. I'm floored when people (not the OP, per se) ask questions about their cars not being able to hit VTEC on a basemap. It's just shudder-worthy to think these cars are being treated like that.

[deevergote]

I got my ECU tuned because of a basemap
A guy flew the tuner up to Philly to tune his turbo F22A. However, he blew the engine the night before due to racing on the basemap. I got my ECU tuned cheap because the tuner had nothing else to do!

Anyway, Jarrett pretty much said it all in the first reply. Get it tuned properly, and adjust the ignition timing, adjust the valves, etc... If the problems persist after those things, then we'll at least have a few things to rule out in helping you diagnose the problem.

[Dat CB7]

Sounds good, will baby. I'd rather not see something I've built over the course of the last 4 months get hurt.

[drummersteve7]

sounds like you got a sticking valve to me.

everyones so focused on the basemap.
ran 5 phearable chips, zero issues, cause we used them to start car, bleed coolant, and get it to tuner.

not to play around on.

[Dat CB7]

Alright, just figured out all of the suction and noise is coming from the iac valve hole in the throttle body. Throttle closes, hole stays open and the car revs anyways. Any ideas?

[daovangphotos]

Bad IACV?
Was the coolant bled of all air?

Looks like the map sensor is not hooked up

Correct me if i am wrong, but aren't you supposed to swap out the front water neck from the F22Ax so the temperature sensor will still be plugged in there?