Picked up a b16a swapped 97 lx civic last week, and after finally getting a few more engine /tranny bolts put in and replacing the control arms, I was able to take it for a test drive. Unknown mods really, but I think the ECU has been switched.. Its a 5 speed and the gears shift smooth. I was finally able to actually drive it today, and it hesitates a bit between 3000-6000 and then screams between 6k to 8k rpm. It has a ton of pull in that higher range, but seems like something's missing before that. This is at full throttle that the hesitation occurs btw. Do yall have any clues as to where to look? I need some starting areas.

Thanks,
Drew

 

you think the ecu has been changed, just post the numbers and letters on it and we'll tell you what it is,

does it do it after u hit vtec, maybe not for a sec?

 

Don't have car with me. will post ecu info tomorrow . feels like vtec doesn't kick in until 6500ish. really but this is my first Honda so I wouldn't really know.

 

Maybe your.so.used to being vtec evryrhing eles seems to hesitat :p

 

Yea 6.5 seems to high might be ecu

 

This evening I'll be taking it to a guy to check out the engine bolt issue.. Will take a video of the rpm/speedo and post it up for ya to see and give some input. Also will post pics of the ecu and the jumper harness connecting it.. Its definitely an aftermarket harness adapter between the ecu and stock harness. Hopefully you could post some insight as to what the hell the deal is with it

 

yea i will for sure. i have have a b16a in my sol.
and vtec should kick in at 5600
i have a pr3-j01 ecu which i think i better then the p30 and pw0

 

Ok the guy I took it to today verified by opening up my ecu that its a chipped ecu. Its got some SST chip in it, and had a 4 pin connection (probably for usb) soldered in it. As promised I took a video of driving it, and that hesitation as well as some pics of the p28 ecu for ya as well as a pic of the obd2 to obd1 harness and the ghetto rig job that was done (NOT ME I PROMISE!)







This chip will probably be replaced with a hondata s100 or 200. As is, it has some sort of launch control built in. There is no red line to that programming, which scares me. It has a hell of a vtec power band above 7k though. The farthest I've brought it is 8100(ish) and I really dont feel like pushing it to see if they added a redline or not

 

Well ur gauges are wrong on the car, and do u think it was tuned?

 

Why do you say the gauges are wrong and yes I do think it has at least a bit if a tune.. not sure how much

 

Thats not a b16 rpm gauge

 

I would think that its the stock d16 gauge set from the original engine. Remember this was a 97 ex model before the swap.

 

Which does not matter, It just means that the needle will have to go off the guage a little haaha. And where your computer has been ****ed with you're limiter is probably somewheres between 8600-9000 now. I take my stock b16 to 8800 daily with no problems. I make peak power (dyno tested) around 8100-8200

 

true,but when he was saying that vtec didnt kick in until 6600 rpm..and i thought it was something eles, it was really kicking in around 5600 rpm lol

 

that would be why it feels like i'm riding a raped ape between 75 and 8100 rpm.. gotcha! Going to have to change my CV axles soon, they're starting to click while turning.. Do you think its possible for me to be able to pull the tune off of my SST chip if i am able to get one of the 4 pin usb cables like is soldered to the ecu board?

 

well it feels like vtec isnt kicking in, because there's a serious hesitation/jumpiness around 5600.

 

If it's not tuned, and it's only chipped...there is your answer.

Getting a "chipped" ecu, is a joke. Timing and fuel maps are guessed based on the mods you reported when the chip is created.

Get a stock b16 ecu, and be happy you have a nice driving car again. It's cheap.

 

In a b16 you will know when vtec kicks in. Its a big sound difference. See if you can here it here.

http://www.youtube.com/watch?v=fpZaAN5nzIk

If you can't, Ill film mine for you

 

see if there is a wire comming off of j1

 

whats the hp on that

 

I think I heard it, and basically it sounds/feels like its hitting a power zone once it switches to vtec. Correct?

and the wire coming off of J1, where is this, on my ecu?

 

[IMG] Uploaded with ImageShack.us[/IMG]

 

Alright, I'll check on lunch when i go out to the car next.

 

it might be that red one in the pic