Engines problems with my truck NEED HELP!!!!!
#1
Engines problems with my truck NEED HELP!!!!!
The codes it throws are as follows. P1506, P0401, P0304, and P0000 6 times.
1506=Idle Air Control Over Speed Error
0401=related to the EGR somehow, not sure the specific code
0304=continous misfire on cylinder #4
Also when I accelerate hard the OIL psi gauge drops and the light comes on but then goes back to normal.
This is a video at idle.
1506=Idle Air Control Over Speed Error
0401=related to the EGR somehow, not sure the specific code
0304=continous misfire on cylinder #4
Also when I accelerate hard the OIL psi gauge drops and the light comes on but then goes back to normal.
This is a video at idle.
#7
Most likely clogged passages in the throttle body/upper intake. Remove the EGR and the upper intake/throttle body. Clean out the passage where the EGR connects. It flows thru and turns into 2 passages on the inside of the intake/TB. Pipe cleaner and card/TB cleaner will do the job. Reassemble(if it's not clogged then test the EGR by applying vacuum, if it stalls out.. it's working. Still have the code could be the DPFE sensor.
Vacuum leaks or IAC stuck open or a grounded short.
To me it sounds as if a coil is going out, but if you have any major vacuum leaks going on it could be a false positive caused by the other issues.
As for the oil psi gauge dropping, is the engine low on oil? Possibly something going wrong with the oil pump... someone else could have a better idea on that.
Vacuum leaks or IAC stuck open or a grounded short.
To me it sounds as if a coil is going out, but if you have any major vacuum leaks going on it could be a false positive caused by the other issues.
As for the oil psi gauge dropping, is the engine low on oil? Possibly something going wrong with the oil pump... someone else could have a better idea on that.
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#9