2002 Nissan Frontier 6 Cly 4WD. the idle jumps up and down. I got the code C1146

Question

2002 Nissan Frontier 6 Cly 4WD. the idle jumps up and down. I check the pressure on the gas pump ok also change the mass airflow. nothing. anybody. I got the code C1146

Answer 1

Hi there,

i would check for intake manifold gasket leaks. With the engine running, spray some carb cleaner along the intake and any other vacuum lines you can find. If the idle speed increases or smooths out, you have a leak that needs repair. This is a common cause for the idle to search.

Answer 2

C1146 NISSAN - Side G Sensor Circuit

Read more: https://www.autocodes.com/c1146_nissan.html