Another ECU Problem? H22 Turbo Civic p28
10-30-2013, 10:39 AM
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Another ECU Problem? H22 Turbo Civic p28
Background:
I own a 95 civic ex coupe that was auto
Years ago I swapped in h22 manual that has been sleeved with wiseco pistons and eagle rods, etc.
I then installed a DIY turbo kit with an NGK AFX wideband O2 and Greddy Profec Spec-B boost controller.
Chipped p28
precision 1000cc injectors
walbro 255lb hiflow fuel pump
aem fuel rail and aem fpr
The car sat for years as I was tired of working on it, lost patience, money, etc.
Current Status:
Reinvigorated I have been able to get the car to start and idle!
The car will start and idle and I would like to begin tuning EXCEPT it is running extremely rich according to my wideband O2 sensor.
While idling I can't the AFR to go past 9.5-10.5 and the FPR won't bump the pressure past 30psi (I've replaced the diaphragm and orifice with the rebuild kit)
Loaded p28 with ostrich using crome and base h22 turbo rom I found online
boost at idle is not existant (new to turbo so i'm not sure what is normal).
My conclusion/and thought process:
Check engine light is on and when I jump the service connector it doesn't retrieve any codes. I then tried resetting codes by pulling ECU fuse and it did nothing. I think my fuel psi is low and AFR is high due to the ECU putting the car in limp mode and my 1000cc injectors are dumping any and all fuel possible into the cyliders causing it to run rich.
Are you all thinking my ECU is bad causing the limp mode or should a car not be running at all if the ECU is bad?
Any help here is appreciated - I would prefer not to buy a new ecu if it can be avoided.
I own a 95 civic ex coupe that was auto
Years ago I swapped in h22 manual that has been sleeved with wiseco pistons and eagle rods, etc.
I then installed a DIY turbo kit with an NGK AFX wideband O2 and Greddy Profec Spec-B boost controller.
Chipped p28
precision 1000cc injectors
walbro 255lb hiflow fuel pump
aem fuel rail and aem fpr
The car sat for years as I was tired of working on it, lost patience, money, etc.
Current Status:
Reinvigorated I have been able to get the car to start and idle!
The car will start and idle and I would like to begin tuning EXCEPT it is running extremely rich according to my wideband O2 sensor.
While idling I can't the AFR to go past 9.5-10.5 and the FPR won't bump the pressure past 30psi (I've replaced the diaphragm and orifice with the rebuild kit)
Loaded p28 with ostrich using crome and base h22 turbo rom I found online
boost at idle is not existant (new to turbo so i'm not sure what is normal).
My conclusion/and thought process:
Check engine light is on and when I jump the service connector it doesn't retrieve any codes. I then tried resetting codes by pulling ECU fuse and it did nothing. I think my fuel psi is low and AFR is high due to the ECU putting the car in limp mode and my 1000cc injectors are dumping any and all fuel possible into the cyliders causing it to run rich.
Are you all thinking my ECU is bad causing the limp mode or should a car not be running at all if the ECU is bad?
Any help here is appreciated - I would prefer not to buy a new ecu if it can be avoided.
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