2007Cadillac cts 2.8
Bought this Cadillac and it had 24 codes I slowly worked it
down to 4 codes. It was running ok ish. And then one night
I parked it for a hour got back in southern ded horrible I
shut it off and hasn't ran in 3 weeks. Codes p0222 p0122
p02119 p0204 all were showing I changed the inkecter
wires to the first harnes cleaned all the injectors. Checked
all my sensors. Changed the throttle body checked fuses it
wants to start and you can hear it but it doesn't. Like maybe
out of timing
If it's trying to start but never does it could be the fuel pump. What does it do when you turn the key?
I have checked to see if it's getting fuel by pressing the valve down by the fuel rail. But wouldn't it start if I used starting fluid for just a second
I would think so but maybe the fuel pump isnt sending enough fuel, it doesnt have enough oomf. You can try measure the pressure of your fuel rails when you start it if you plug in a pressure measure on the fuel rails. If it doesnt have enough pressure that might make sense why it's almost starting but not quite enough fuel is getting to the cylinders.
I replaced the throttle boddy on the intake manifold and fixed a couple bad wires. And the only code that popped now is p0204 open injectors cercut cylinder 4. Another question I have is is the injectors the same place like the firing order is
Fchecked fuel pressure and it holds stady 55
Okay I took the spark plugs out And the left side were burnt up and had fuell in the bottom so I cranked it over to get all the junk out. Re gapped the plugs and installed it all back in. Almost cranked over. But seamed like it flooded. Left spark plugs are in cylinder 1 3 an 5. Code pops for cylinder 4. And all plugs were put in the same time
UPDATE: P0122 DTC SOLVED: REPLACED ECM WITH RE-MANUFACTURED ECM FROM FLAGSHIP ONE: [URL="https://www.fs1inc.com/"]https://www.fs1inc.com/[/URL] DEALER REPROGRAMMED 1.5 HOURS LABOUR FOR INSTALL/REPROGRAMMING 2005 OPTRA5 NOW RUNS LIKE A DREAM; NO MORE INTERMITTENT P0122 DTC.
