ok - we did some off the wall testing tonight, thanks to my buddy Sean who've I've known for 25+ years...
he was here when the kit arrived, and hasn't seen the car in a while, so we went through our testing cycles, going through all the parts replaced, etc. pretty much relived this thread
we started talking about the direct injection and port injection on this engine, we hadn't checked the wiring to the lower (direct) injectors so we got out the boroscope and looked around, didn't see anything disconnected or any rodent damage
after a while, he said 'what if we disconnect the bank #2 injectors on top' - we figured it would be worth a try, since the other injectors would add some fuel to run as well
what do you know - the engine fired up and idled just fine, a few loud bangs, and the driver side got nice and hot! the bangs were excess gas in the cylinders relieving themselves
the look on my face must have been something else because we all started laughing, not thinking that the engine would work properly with injectors #5,6,7,8 unplugged - we were perplexed, yet somewhat relieved...
so what did that mean?
we tested with all 4 injectors disconnected, O2 readings were good, so we started a process of elimination
plugged in injector #5 and started the engine, O2 readings are good, temps coming up
plugged in injector #5 and #6 and, same goodness
we then additionally plugged in #7, so we had 5,6,7 plugged in, O2 readings are good! temps coming up!
then we plugged in #8, thinking - maybe it was just a fluke, NOPE - O2 readings went bad - so we determined that injector #8 must be stuck open!
unplugged #8 and it ran fine again... so tomorrow, going to the store to find a replacement injector...
what's really perplexing here is no codes led us to an injector!!
I'll definitely be changing the oil as it reeks of gasoline and has probably lost a lot of it's lubricity
leave it to me to be a guy who changes his oil before he puts a mile on his car...
fingers crossed, a new injector will remedy this!!!
I believe it's the
MOTORCRAFT CM5269
here's a pic of my buddy Sean and my son Ryan when we first got the kit, it's been a journey!