1999 Chevrolet Silverado 1500 "po174 code" Questions

2002 avalanche po171-po174 code 171 is posting right fuel trim is lean 174 is posting left fuel trim is lean can be faulty injectors not opening all the way it seems

...code in it po171 and po174 sey burning to lean on bank 1 and bank 2 what should i check for did pass inspection Running lean on both banks? Check intake tubing/hoses for loose clamps and cracks/tears ...

...code PO174, it only happen doing winter. usually caused by a leak in intake manifold gaskets. Try spraying ether or carb cleaner at the gaskets with the engine running. If the engine revs at all, you ...

...DTC's code PO171 & PO174 with the system too lean in (bank1 and bank2) could be the intake gasket leaking? have a smoke test done. Very unlikely to have two oxygen sensors to go out at the same

My 2003 Chevrolet silverado 4.3, automatic has codes PO171 Bank 1 and PO174 Bank 2. It say's to lean. Please help Have you recently put on a cold air intake? Or reoiled an oiled air filter? These ...

...code PO174 The service engine soon light on my 2002 Silverado 2wd ext. cab pickup with 5.3L non-flex fuel came on. It throws a PO174 code. I have since replaced the plugs, plug wires, and temperature ...

po174,po753 P0171 - System Too Lean (Bank 1) and P0174 - System Too Lean (Bank 2) Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6

...code po174 just had dealrer replace 2 o2 sensors- codes were po171 and po174- worked OK for around 100 miles and then ck engine light back on but only with codes po174 now??? Check wiring to

...code po171 what could be wrong and code po174 what can cause these codes to come up Check for vacuum leaks, especially the intake manifold gaskets. If those are o.k., clean the Mass air flow

...get OBD PO174 Lots of sites,hundreds--- to learn about codes & vehicle systems Just remember,codes do not tell what is wrong or to replace anything You use the code to component test a system ...