completely stumped, 6.0l truck engine problem
#14
TECH Veteran
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Cam and crank installed dot to dot?
Did you happen to check fuel pressure.
Is this a 2007 NBS or NNBS truck. IF NNBS are you positive it's a 58X crank I really don't know how the pcm would respond with the older crank hell it may not even start if it was not a 58x crank.
Did you happen to check fuel pressure.
Is this a 2007 NBS or NNBS truck. IF NNBS are you positive it's a 58X crank I really don't know how the pcm would respond with the older crank hell it may not even start if it was not a 58x crank.
#18
Staging Lane
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did the crank sensor relearn
checked all the fuel injector pulses and they are good
double checked all grounds
exhaust not plugged
swapped #1 o2 sensors from left to right bank, no change
changed the bad bank 1 rear 02 sensor and its working now, no change, and now there are no trouble codes
the short term and long term fuel trims are all at 0% (not sure if this is normal)
put in new plugs
old and new engine were both 58x wheels
ordering new spark plug wires now even though i doubt thats the problem
drained old gas and put in fresh gas
map sensor is good
maf sensor is good
throttle body is good
coolant temp sensor is good
oil pressure sensor is good
all 4 02 sensors are reading correctly
coils are good
fuel pressure is good and steady. Will fluctuate a small amount when struggling to idle
did compression test on all cylinders except #8 because it was hard to get to. All are 210 on the dot