dialric

05 LQ9/4L60E wiring harness for stand alone use in a 70 chevy 2wd blazer done by speartech. I puchased the blazer and from day 1 it has not been running correctly. I really am somewhat lost and need all the help I can Get. battery 14.45 Alt. voltage 14.57 P0174 system lean bank 2 and P0200 injector circuit injector 7.8 volts. Fuel pressure 58lbs Taken with engine running. What to I have to do to correct my problem?

Old Geezer

iTrader: (3)

Post some data logs. Someone may be able to spot it.
7.8 v at the inj?? All injs?
How did you measure this?
I've tested many injs, and found that most won't even fire at that voltage....