Chevrolet Malibu Forums banner
1 - 7 of 7 Posts

· Registered
2010 Malibu LT 2.4
Joined
·
2 Posts
Discussion Starter · #1 ·
2010 Malibu LT 2.4. 147k miles. Recently replaced the throttle body, exhaust manifold, up and downstream O2 sensor, Catalytic converter, exhaust flex hose, catalytic converter, MAF, and all associated gaskets with previously mentioned equipment. I am now getting a P0171 code and everything in my code reader shows as passing. Any ideas or suggestions on what this could be?
 

· Administrator
2011 Malibu LTZ 3.6L V6 Red Jewel Tintcoat
Joined
·
21,014 Posts
Have the injectors been cleaned or diagnosed for proper action?
 

· Premium Member
Joined
·
3,437 Posts
Did you use AC parts ? Aftermarket like Duracrap are not reliable electrical parts and I've had bad parts out of the box making me crazy. Learned that a long time ago.
 

· Registered
Joined
·
9 Posts
I had to replace my engine because I threw a rod. When engine got replaced I had p0171 went the route of maf,map, O2, built my own smoke test, all that fun stuff. Eventually replaced the fuel injector and that got rid of my p0171.
 

· Registered
Joined
·
1 Posts
2010 Malibu LT 2.4. 147k miles. Recently replaced the throttle body, exhaust manifold, up and downstream O2 sensor, Catalytic converter, exhaust flex hose, catalytic converter, MAF, and all associated gaskets with previously mentioned equipment. I am now getting a P0171 code and everything in my code reader shows as passing. Any ideas or suggestions on what this could be?
The intake manifold could be loose. Bolts loosen over time. Engine sucks air and pcm throws that code. Tighten bolts, end problem.
 
1 - 7 of 7 Posts
Top