Automatic ecu PR3 Redline 7300...?
 

Ok, let me take a deeeep breath and try to explain what i have gone through, basicly hell :-[. In my 91 civic si I have a b16a2 with a pr3 ecu. I swapped this motor out of a dx 91 civic, all the problems where there before the swap. First, the car was running pretty rich i could smell the fuel and it kicked out some blueish smoke at high revs NOTE: no O2 sensor for some reason. I replaced the o2 sensor got a little better but still running rich. NOTE: no engine codes and the thing can hardly idle when its real cold out but after it warms it idles around 1200-1400.
So, next i replace the whole damn T.B. & sensors and all; i get all excited thinking this is it...... >:(NOPE! same crap but little better. NOTE: Tach has a mind of its own the whole time works when it feels like it. By now im ticked and i stop messing with the sensors since i replaced almost any sensor that would effect my idle/ f/a mix. Plan 2, I will get the tach working maybe by some chance in hell that will have something to do with it. So, I cut the wire from the Distributor output for the tach and tap it into my MSD box tach out. HELL YES I HAVE A TACH, but for some reason it wont rev past 7300. I have a pr3 ecu and a b16a2 is the tach ready wrong or what is the deal ecu bad? also, now when i getting off the interstate if i just let the car rev down instead of pushing in the clutch i get a Check engine light but obviously i cant see it when im driving.


Any ideas on any of these problems would be greatly appreciated. ???

THanks for your time,
Charlie

Re:Automatic ecu PR3 Redline 7300...?
 

check your idle air control valve. It might be really dirty, so clean her out!! I have a similar problem where it idles up and down between 200 and 1200... im going to clean that sucker out in spring when i take my car out. right now its just too damn cold.

Re:Automatic ecu PR3 Redline 7300...?
 

do you get any codes?

Re:Automatic ecu PR3 Redline 7300...?
 

What code are you getting?

Re:Automatic ecu PR3 Redline 7300...?
 

I cant get it the only time it comes up is when im driving. Does it show the code over and over? ???

Re:Automatic ecu PR3 Redline 7300...?
 

The codes are stored, so just turn your key to the on position and count the blinks on your ECU.

Long blink is a 10, short is a 1

short short short: 3
long short short short short: 14
long long: 20
Etc....

The ecu will keep flashing all stored codes, give long pause and then repeat.

http://tech.hybridgarage.com/tech/codes.html

Re:Automatic ecu PR3 Redline 7300...?
 

the ecu light will continue to display with the key in the on position even if i have shut the car off and the check engine light has turned off?

Thanks

Re:Automatic ecu PR3 Redline 7300...?
 

yes.
Also, I am talking about the light that is on the actual ECU box, not the check engine light.

HTH

Re:Automatic ecu PR3 Redline 7300...?
 

Ok, I'll check it out after my class tomorrow.

Thanks ;) ill let ya know,
Charlie

Re:Automatic ecu PR3 Redline 7300...?
 

Ok, it flashes code 14 and 17? any ideas?

thanks