Check Engine light
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Check Engine light
Hey guys need some help here my check engine light came on and got codes 171,303,316 I know its says lean system and misfire cyclinder. What can i do to fix this lame problem im opening for suggestions thanks.
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Joined: Oct 2005
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From: Louisville, Kentucky
Your codes are as follows.
P0171 Bank 1 Lean
P0303 Cylinder 3 misfire
P0316 (misfire during first 1,000 revs after start-up)
You are likely looking at two problems. You have vacuum leak in bank 1. If you had both banks lean, the leak would be in the intake air duct prior to the throttle body. Since it is one bank, look for a vauum leak in the intake manifold for that bank alone. Spray some carburator cleaner around the intake runners when they meet the head. When the engine changes in how it idles, you found the leak.
The other two codes are self explanatory. Good luck!
P0171 Bank 1 Lean
P0303 Cylinder 3 misfire
P0316 (misfire during first 1,000 revs after start-up)
You are likely looking at two problems. You have vacuum leak in bank 1. If you had both banks lean, the leak would be in the intake air duct prior to the throttle body. Since it is one bank, look for a vauum leak in the intake manifold for that bank alone. Spray some carburator cleaner around the intake runners when they meet the head. When the engine changes in how it idles, you found the leak.
The other two codes are self explanatory. Good luck!
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