ok whats up H-T need some help ...im try to get my crx dohc turbo ready for import show off in miami this year but i have a couple problems

first iam running a stock dohc zc with a to4e turbo ive gone over everything checked everything my problem is when i take the car out and dive like a grandpa its fine but when i start getting on it and hit 5500 rpms it throws cel and idles down till it dies and my pm6 ecu is blinking 3 and 7 absolute mani pressure and tps well i just got a new tps and calibrated it .5v at ct and 4.5v at wot so i know thats good once the car dies i start it back up and its fine untill i get on it again why could this be happening and help would be awesome

 

Are you running a straight up (unmodified) PM6 ECU?

 

How much boost are you seeing? Might be too much for the MAP sensor.

 

map sensor?

 

yes stock unchipped

 

and i think 4dref thats whats happening which puts to much air in and the the tps code come on cuz it cant produce enuff fuel right ???

 

i turned the manual boost controller all the way down so its shouldnt be running that much psi i think i need my ecu tuned and bigger injectors

 

what do i do about the map sensor ?????

 

-YOU- should do absolutely nothing.

You are going to blow your engine. Not maybe, but definitely. It's a matter of time.

Running boost and trying to manage it with a stock ECU with no tuning at all is the completely wrong way to add a turbo.
The ECU has no clue what it is supposed to be doing when you force air. It only know how to conservatively deal with sucking air in under it's own power.

Convert your ECU to OBD1 to set your car up to deal with this most effectively.
Then take the car in to a professional tuner and pay them to tune the car.

 

-YOU- should do absolutely nothing.

You are going to blow your engine. Not maybe, but definitely. It's a matter of time.

Running boost and trying to manage it with a stock ECU with no tuning at all is the completely wrong way to add a turbo.
The ECU has no clue what it is supposed to be doing when you force air. It only know how to conservatively deal with sucking air in under it's own power.

Convert your ECU to OBD1 to set your car up to deal with this most effectively.
Then take the car in to a professional tuner and pay them to tune the car.

 

Oh dude i totally agree but heres the problem i thought about converting it to obd1 so many times but i just bought a new dizzy($ 150)for it and ive heard or ppl using turbo edit for obd0 and i dont know any body in the ft.myers area that can tune and my son is due in april so cant really blow too much money without the wife trippin lol so cheaper is better i guess and i wouldnt mind tuning myself i mean **** ive been to school for cars and built this crx from the ground up in 2 months ive been working on cars since 14 so it shouldnt be that hard + i know their are websites to help out and it should give me some experience when i do my k20a2 with k-pro

 

End thread then. No excuse whatsoever not to be running a tuned ECU.

 

ummmmm NO im not done yet...so if you cant bring something usefull to the table stfu .... so ive talked to xenocron tech center obd0-obd1 tuning co. they told me to update to obd1 because obdo is outdated ok so what do i need to make it obd1 td43u dizzy ok what ecu and what else

 

4 wire O2 and OBD0~OBD1 conversion harness.

EDIT:
and if you do go this route and decide to run a chipped OBD1 ECU, do NOT drive around on a basemap.
do NOT!!!
Basemap is NOT a tune.

And do NOT tune the car yourself.
Your 2 years of car school is not tuning.
Have somebody show you how it's done properly before you go messing with it.

 

There's absolutely no reason what soever to drive your car in boost w/o a tune. curious as to how much research you did before putting a turbo on your car.

words to live by

 

Actually their is a reason after u build a car you wanna see how it runs and drives and yeah this would be my first turbo build and seeing as how its a pieced together turbo kit it doesn't come with an instruction manual so back off

 

I know my 2 years at school isnt tuning and i know what a base map is its "BASE" map stock parameters of the ecu just for clarification im NOT out driving the car around like its a daily i took it out about 3x two houses down from my house and back into the driveway to make sure their are no leaks suspension is setup correctly and the last (3rd) time i took it out was to see y their was a problem and how the car was reacting

Now the only reason i mentioned school was to let you guys know i do have automotive back ground but i also have computer knowledge and wiring knowledge

And trying to find a person that knows hondas and knows how to tune them in ft.myers florida ....well maybe u know something i dont but i cant find anyone out here


4dref i appreciate all the input u are giving me and in no way is this^^^^ knock against u

 

Should i get the AEM wideband o2 or just a regular 4 wire o2 and what injectors should i go with? do they need to be obd1 injectors and what ecu do i run ?

 

How about you take a look at the links in my signature for starters? In the go faster link there's a whole section of turbocharging.

Converting to OBD1 is one things the tuning and turbocharging a car is another matter. The excuse that you're using to try and excuse your actions by not being tuned is preposterous. "So you can see how it runs like that? A bunch of crap. " And if you were REALLY talking with Xenocron I'm surprised they couldn't tell you the answer to any of these question. **** you can even call up a shop, be they near you or not, and ask them.

And with the MULTITUDE of build threads in the Forced Induction I fail to see how you cannot come up with a parts list to finish the build. All these resources and you have to start a thread? No excuse for that.

Oh. This is a PUBLIC FORUM!
I can post anywhere I damn well please.

 

time to do some serious reading, because there are some gaps in your knowledge.

 

If your really on a budget, get a fmu and missing link. The fmu bumps the fuel pressure
under boost and the missing link is for the map to not see boost. That's how they did it
before they were able to tune the ecu. Keep the boost low 5-6psi max.

 

Sure, but you don't then wonder why it doesn't run properly. Ofcourse it doesn't run properly, it's not tuned!

 

well your background isn't helping you at all. you don't jump into a project like this w/o first doing research. yeah you pieced together your kit, so did i and i did "all" my research, not half.

need to seriously check the thread in grumblemarc's signature. will answer most if not all of your questions. seriously, read and then come back and ask questions if you don't understand

 

That graphic

 

Cheapest route, AFC with a wideband setup, 3 bar map sensor.
Alternative but pricey, Chipped OBD1 ECU with wideband setup + Map sensor,
Half *** setup = Run it till it blows.