I have got engine code p171. After reset it comes again within 30 miles

Question

What is the possible cause to came on engine light very soon after eraised it?

Answer 1

Hi there,

There are several possible things that can cause this code.

Low fuel pressure, ignition timing, leaking intake manifold or exhaust. You can also have an issue with the front O2 sensor, or the mass air flow sensor. Each of these has to be eliminated to determine the cause of the problem.