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Bogging problem with new ecu

 
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Old 06-03-2010, 01:07 AM
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Bogging problem with new ecu

So i just got my new chipped p28. I put it in, pulled the fuse to reset it and took it for a test drive. It felt a little sluggish under 3.5k rpm, but i was still able to drive it. (the car was hot when i did this) It started raining so i didn't touch it for the rest of the night, then in the morning i started it up to go to work and it sounded like it didn't start right at first. (like i let go of the key to quick and barely got the car started) So i turned it off and restarted it and it sounded better, but when i hit the gas the rpm dropped to 800 or so then went up. I didn't really think anything of it so i shifted into 1st and it started bogging like i didn't know how to drive stick but fully in gear already. I was late so i didn't let the car warm up first, but i always take it easy when it is cold. It stopped bogging right before i shifted into 2nd at about 4k rpm, but then as soon as i was in 2nd it started bogging really bad (violently) no matter how much gas i would give it.

At this point, i pulled over on a side road and swapped it out for the p14 that i had in the car before, and it ran perfect, aside from not having vtec and redlining to early. Its a H22a by the way.

Now i bought this car with a blown h22 and i swapped that out for my good h22 from my other car. My car came with a p13 and i don't believe it is chipped and i know it works fine in other cars. But when it is in my car it does the same thing as the new p28 with the bogging. the only code i get on the p14 and the p13 is for the knock sensor, and i thought that was the reason for the bogging with the 13, but the p28 has it disabled and still bogs.

So at this point i am so confused as to how it works perfectly fine with the p14, but so crappy with the 13 or 28. If it was something that needed to be cleaned or replaced, wouldn't it still act up with the p14 as well? I have searched on here for this problem, but haven't found anything like this. I have found something kind of close but their car was acting up when it was warm, and mine severely bogs more when its cold. When it warms up, it doesn't really bog but the acceleration is not what it should be.

If anyone has any ideas or any kind of help, i would really appreciate it. Also the p28 is tuned for my car and vtec kicks in every time and red lines right.
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Old 06-03-2010, 04:49 AM
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Re: Bogging problem with new ecu

As far as most of your questions go, I doubt I'm the right person to answer them. However I have a chipped ecu in my car and my car has all kinds of problems, it runs very lean and has very little real power.

From what I understand, chipped ecu's usually do more harm than good, and even a good quality one needs to be tuned to match your car and its mods.
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Old 06-03-2010, 05:22 PM
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Re: Bogging problem with new ecu

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Originally Posted by havikprelude View Post
As far as most of your questions go, I doubt I'm the right person to answer them. However I have a chipped ecu in my car and my car has all kinds of problems, it runs very lean and has very little real power.

From what I understand, chipped ecu's usually do more harm than good, and even a good quality one needs to be tuned to match your car and its mods.
the p28 is chipped but my p13 is not and they both have the same bogging problem more so with the unchipped p13. And that one came from my old with the engine i am using now.
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Old 06-03-2010, 05:41 PM
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Re: Bogging problem with new ecu

Since i got no responses really, can anyone tell me how to find out if i have the right size fuel injectors on? I am thinking they might be for an h23 instead but don't know how to tell.
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Old 06-05-2010, 10:13 AM
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Re: Bogging problem with new ecu

h23 resistance on injector terminals are 1.5-2.5 ohms
i can't find resistance on the h22 ones. but maybe check you resistor box???
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Old 06-05-2010, 10:31 AM
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Re: Bogging problem with new ecu

it sounds like a fuel problem. my car does the same thing,but thats because my fuel pump is hella bad. i mean if you know who tuned it i would take it up back to the place.. btw, i have my p28 ectune you plugged and played it correct?
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Old 06-07-2010, 04:59 PM
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Re: Bogging problem with new ecu

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Originally Posted by Floww View Post
it sounds like a fuel problem. my car does the same thing,but thats because my fuel pump is hella bad. i mean if you know who tuned it i would take it up back to the place.. btw, i have my p28 ectune you plugged and played it correct?
yup plug n play
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Old 06-07-2010, 05:00 PM
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Re: Bogging problem with new ecu

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Originally Posted by Bustr View Post
h23 resistance on injector terminals are 1.5-2.5 ohms
i can't find resistance on the h22 ones. but maybe check you resistor box???
Ima try to check that today, thanx
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Old 06-11-2010, 12:52 AM
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Re: Bogging problem with new ecu

If the injectors are the same as before when you had that engine in the other lude i don't see how that is the problem when it was running good with the p13 and everything. The problem is somewhere in the swap. you either have some vac lines mixed up or there is a fuel problem with the car. What type of dizzy are you using, is it external coil or internal.
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Old 06-11-2010, 03:36 AM
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Re: Bogging problem with new ecu

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Originally Posted by RoccityLuder585 View Post
If the injectors are the same as before when you had that engine in the other lude i don't see how that is the problem when it was running good with the p13 and everything. The problem is somewhere in the swap. you either have some vac lines mixed up or there is a fuel problem with the car. What type of dizzy are you using, is it external coil or internal.
its an external. Also when i had my old car with this engine and the p13, it would redline at 68 for some reason. Idk if that had something to do with the injectors or if who ever did the swap had something wired wrong. When the p13 is in other cars though it redlines right.
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Old 06-12-2010, 01:54 PM
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Re: Bogging problem with new ecu

hey i would check your fuel regulator ,along with resister box, like buster said and for the hell of check o2# sensors, they do go bad , they will cut down your fuel trim.
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Old 06-16-2010, 05:36 PM
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Re: Bogging problem with new ecu

i finally checked my injectors and resistor box. All the injectors were around 3.3 ohms and 1 was at 6. So that could be the problem. But my resistor box was around 8 ohms and 1 of the contacts was even up to 12, but was kind of bouncing around a little. Either way though, the manual says the box should be between 5-7 ohms. So i am hoping my other box is good and that's the only problem.
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Old 06-16-2010, 05:36 PM
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Re: Bogging problem with new ecu

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Originally Posted by JohnL114 View Post
hey i would check your fuel regulator ,along with resister box, like buster said and for the hell of check o2# sensors, they do go bad , they will cut down your fuel trim.
I haven't checked the regulator yet, but the o2 sensor is maybe a month old so i know that is good.
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Old 10-30-2010, 12:47 AM
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Re: Bogging problem with new ecu

im having this problem with my car....only difference is that my car bogs when it get warm. i swapped my fuel pump, fuel pressure regulator, fuel filter and thats about it. did ur problem ever get fixed? if so how?
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Old 10-30-2010, 10:56 AM
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Re: Bogging problem with new ecu

what basemap are you running with the p28..... I hope its for an h22.. if its not, thats your problem... guaranteed... get one for an h22 burnt onto your chip.....

disreguard all this if you've got an h22 map....

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if you want them enabled..., it's real easy to convert your p28, into a p72..., so you can have your IAB's and eat 'em too... (lame humor, I know).. you can buy the hardware from xenocron.com.., there's also a write-up

pm me if you want a good h22 basemap... its edited by crome pro.., guaranteed not to bog down
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