I know this has been beat to death because I've read just about every post regarding this problem but nothing I've tried has worked. When I fixed a vacuum leak my blms tanked. Many were sub 100! Maybe I should put the vacuum leak back in. Today's numbers were:
118 116 114 125
128 114 109 105
128 128 110 105
128 128 128 105
This was running about 42# fuel pressure. Car starts fine but smells rich. Fuel pressure at idle and cruise is 36# so the regulator seems to working. Holds pressure after engine is turned off. Swapped O2 sensors (cross counts were fine). Replaced LT1 maf, translator +, and extender chip with stock type maf and another chip. Swapped ecm. Plugs were replaced before the nats. I pulled them and they indicate a rich condition system wide, not just one or two cylinders. Adjusted translator for lean idle and 10% lean wot. Tried a different chip with the LT1 maf and translator. Just installed a Houston pipe and test/dump so the cat's not a factor. Ran a gallon of xylene through it to clean the injectors. (Probably a 5 to 1 mix).
At the track it struggles above 3500. Coil pak is at least 4 years old. Ignition module was replaced last year with new Borg Warner.
Really reaching now. Thanks.
118 116 114 125
128 114 109 105
128 128 110 105
128 128 128 105
This was running about 42# fuel pressure. Car starts fine but smells rich. Fuel pressure at idle and cruise is 36# so the regulator seems to working. Holds pressure after engine is turned off. Swapped O2 sensors (cross counts were fine). Replaced LT1 maf, translator +, and extender chip with stock type maf and another chip. Swapped ecm. Plugs were replaced before the nats. I pulled them and they indicate a rich condition system wide, not just one or two cylinders. Adjusted translator for lean idle and 10% lean wot. Tried a different chip with the LT1 maf and translator. Just installed a Houston pipe and test/dump so the cat's not a factor. Ran a gallon of xylene through it to clean the injectors. (Probably a 5 to 1 mix).
At the track it struggles above 3500. Coil pak is at least 4 years old. Ignition module was replaced last year with new Borg Warner.
Really reaching now. Thanks.
