91vette block learn???
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 949
Likes: 0
From: smithtown ny
91vette block learn???
i installed about 6 months ago 5-o-motorsports pink injectors. i don't drive it much but today i put the ezlink scanner on it and my block learn said 112 in closed loop what is up with this.?? i have a ton of bolt on's headers and so, and also had ski_down_it jesse burn a chip for me. so the ecm is taking fuel out??? my fuel pressure is at 42 with line on. oxygen sensor was 556 mvolts. this is a new heated sensor. injector pluse 1.7ms, integrator 129, blk lrn cell 4, 02 cross counts 29.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by 6spd
i installed about 6 months ago 5-o-motorsports pink injectors. i don't drive it much but today i put the ezlink scanner on it and my block learn said 112 in closed loop what is up with this.?? i have a ton of bolt on's headers and so, and also had ski_down_it jesse burn a chip for me. so the ecm is taking fuel out??? my fuel pressure is at 42 with line on. oxygen sensor was 556 mvolts. this is a new heated sensor. injector pluse 1.7ms, integrator 129, blk lrn cell 4, 02 cross counts 29.
What size are the 5-O motorsports injectors? If they are Ford SVO injectors they are rated at 24lb/hr at 37 PSI so if you have your pressure at 42 PSI with the vacuum hose connected that means that your static pressure is greater than that with zero vacuum or when the hose is disconnected. The 24lb SVO injectors at 43 PSI are actually about 26lb/hr so if your chips injector constant (which is 22lb/hr) has not been changed to reflect the new injector size then its going tobe running rich and the ECM will be taking fuel out.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by 6spd
the injectors are 21lb
