2002 4.6l check engine light codes. Need help!
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2002 4.6l check engine light codes. Need help!
My truck has 144k auto 2wd
i had the pcv hose leaking and replaced it after few day of running with po171 and po174 code , lean bank 1 and 2
i fixed the hose with new one, now the truck is sluggish to cranks and does not have any high rpm power like it's being choked, after rest codes and a 10 mile ride , same codes appear, I think the cats are melted, it runs fine till I floor the gas then it feels as if it can't get the exhaust out . What's your thoughts?? And advice is helpful.
i had the pcv hose leaking and replaced it after few day of running with po171 and po174 code , lean bank 1 and 2
i fixed the hose with new one, now the truck is sluggish to cranks and does not have any high rpm power like it's being choked, after rest codes and a 10 mile ride , same codes appear, I think the cats are melted, it runs fine till I floor the gas then it feels as if it can't get the exhaust out . What's your thoughts?? And advice is helpful.
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The hose is the evap purge hose. The green thing is attached to the vapor canister purge valve, I think it's a check valve. The white thing under it is the solenoid that operates the purge valve. If the hose is leaking, that will definitely be a vacuum leak and will trip lean codes. The hose can be replaced with any fuel-duty hose.
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Local shop found why code po174 & po171 keeps flashing
after extensive searching on my end for vacuum leak, and fuel filter change, took it to a shop cause it started to hesitate a lot on acceleration. Turns out my fuel pump is playing out, I had it changed 5 years ago and now it's currently running 20 psi on startup and when rev it drops to 11-13 psi staring motor for fuel. So I hope this help a lot of you guys that keep getting the Lean bank 1&2 codes. Thanks guys!
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