I have new O2 sensors on the way but was hoping to get you all's opinion.
I have the following set of codes:
P0130 - O2 Sensor Circuit Malfunction, Bank 1 Sensor 1
P0171 - System too lean, Bank 1
P1300 - I think it's a misfire code of some kind...
P0300 - Random multiple misfires detected
P0301, P0303, P0305 - misfire codes (note all on the odd side of the engine, no even codes have popped)
Symptoms include misfires while driving, rough idle and black soot blown out exhaust shortly after initial start up.
I checked the plugs. Odd plugs covered in dry black soot. Even plugs look as they should.
I replaced the odd, soot covered plugs with new ones and it still misfired so I'm thinking the soot covering is a symptom of the misfire and not the cause...
I have replaced the MAF, no change in codes or symptoms.
Car sat for over a year with a nearly empty fuel tank so wondered about water in the fuel, but have run almost two tanks through using 91 octane, with injector cleaner added to the last tank.
This was a 4.0 transplant into my '03 D2 using all the fuel injection and ignition equipment from the original 4.6 that was running smoothly before the transplant with no misfires, rough idle, etc... the 4.6 had a crack in the #5 cylinder wall, causing pressurization of the coolant system...
I swapped over the timing gear and chain from the 4.6 to the 4.0 and am very confident I lined it up right.
I left the 4.0 heads on and have plugged the SAI vacuum lines.
Everything ran really well for the first 100 miles or so.
Thoughts?
I have the following set of codes:
P0130 - O2 Sensor Circuit Malfunction, Bank 1 Sensor 1
P0171 - System too lean, Bank 1
P1300 - I think it's a misfire code of some kind...
P0300 - Random multiple misfires detected
P0301, P0303, P0305 - misfire codes (note all on the odd side of the engine, no even codes have popped)
Symptoms include misfires while driving, rough idle and black soot blown out exhaust shortly after initial start up.
I checked the plugs. Odd plugs covered in dry black soot. Even plugs look as they should.
I replaced the odd, soot covered plugs with new ones and it still misfired so I'm thinking the soot covering is a symptom of the misfire and not the cause...
I have replaced the MAF, no change in codes or symptoms.
Car sat for over a year with a nearly empty fuel tank so wondered about water in the fuel, but have run almost two tanks through using 91 octane, with injector cleaner added to the last tank.
This was a 4.0 transplant into my '03 D2 using all the fuel injection and ignition equipment from the original 4.6 that was running smoothly before the transplant with no misfires, rough idle, etc... the 4.6 had a crack in the #5 cylinder wall, causing pressurization of the coolant system...
I swapped over the timing gear and chain from the 4.6 to the 4.0 and am very confident I lined it up right.
I left the 4.0 heads on and have plugged the SAI vacuum lines.
Everything ran really well for the first 100 miles or so.
Thoughts?