project 1mz celica, 94 gt starting a new life Options

[kurt95gt]

Anygear from 3grand an up i beleave
An it seem to do it at under any kind of load
I did it out of gear too i learned that while looking tobsee if the rear manifold gasket was leaking

[kurt95gt]

Mr220v thinks ots my ecu causing all the problems
So im getting a 97 ecu asap once they get it pulled out at the scrap yard

[ricochet1490]

did you reset the ecu at all?? like dan said, "safe" mode or "limp" mode or whatever??

[kurt95gt]

Im puttin on another ground wire on the pass side them im gonna try an reset the esc.
An maybe try an limp her to autozone( about a mile away) an have them try the obd2 port

[kurt95gt]

So i reset the ecu an that did nothing
It seems to backfire anytime i give it gas now but the back fire isnt as bad or as loud as it was to start with

I read on a lexus forum that the ecu has to lern your driving style
But i dought thats my probem

[richee3]

The ECU runs off of a base map and adjust certains small things based on your driving style, but it should never bog or backfire either on the base map or learned map. My old BEAMS ECU was messed up and caused bogging under load in higher gears and once it started, it would even do it at idle in neutral. Your ECU could very well be the problem. Is it an AT or MT ECU? It shouldn't cause much if an issue but perhaps your ECU is staying in limp mode because it can't find the signals from the auto trans.

[kurt95gt]

Es300 only came in auto
Mr220v grounded out the a/t signal like he does on a 97
So he thinks if i swap ecus it might fix the problem
Only down side i have to move a pin on the ecu an repin the maf
And I HATE WIRING so thats gonna suck

[kurt95gt]

Well it seems to run better befor it warms up
But i think the a/t signal is the problem with the power but not the back firing
So im lost

[richee3]

Before its warmed up, the ECU runs in what's called open loop- that's a safe base map, where the motor can safely run with no sensor input. After the car warms up, it switches to closed loop starts relying on those sensors to determine the conditions that the motor is in. If your car is running fine before it warms up, that's indicative of a sensor issue. How many O2 sensors does your car have per bank? If its 2 sensors per bank, one before and one after the cat, it's possible that an O2 sensor is messed up or they are switched, causing your ECU to trim fuel improperly.

Just a theory.

[95CelicaST]

Got all of your injectors plugged in?

[kurt95gt]

Ill check the injectors in a couple

It has 2 o2 as of right now one on each manifold but there is a plug for one after the cat too so i think im going to have my buddy put anothet bung hole in for that sensor an see what happens

Im still thinkin im having problems with that a/t signal
Just want to get one thing foxed at a time

[bluecelicawife]

Well radiators are in and fans are in

[bluecelicawife]

it's so pretty...lol Kurts words

[Box]

Looking good. Hope you get the other worked out soon!

[kurt95gt]

To do list for tomorrow
Wire up fan
Fill coolant
Hook up volt meter
Call buddy about o2 sensor
Short shifter
An probably other stuff im forgetting

[kurt95gt]

Crap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
just seen i had a new message from mr220v
i got the wrong ecu!!!!!!
I cant win
He even sent me an ebay link for what i need an i missed my chance to bid!!!!

[Box]

Aww man, that sucks... Hopefully can get the right one soon enough.

[kurt95gt]

Me too

[Box]

Well, at least you know what the culprit is now. Get new ECU and cruise around town.

[kurt95gt]

Im still not 100% that the whole problem but itll help lol