Help needed 
My 96' Explorer runs rough up to about 500rpm.
Checked the car with my OBDii code reader, and got 3 codes:
P0402 - EGR flow malfunction
P1151 - O2 upstream sensor ind. lean
P1152 - O2 upstream sensor ind rich
Can the reason for my rough engine be caused by the Oxygen sensor, or is it most likely an issue with the EGR?
And/or can I be so lucky that the P0402 is caused by the P1151/1152??
Any feedback is highly appreciated!
My 96' Explorer runs rough up to about 500rpm.
Checked the car with my OBDii code reader, and got 3 codes:
P0402 - EGR flow malfunction
P1151 - O2 upstream sensor ind. lean
P1152 - O2 upstream sensor ind rich
Can the reason for my rough engine be caused by the Oxygen sensor, or is it most likely an issue with the EGR?
And/or can I be so lucky that the P0402 is caused by the P1151/1152??
Any feedback is highly appreciated!
