Sorry for the dumb post but I am getting p0171 and 74 codes. Did a smoke test through the air intake and found a few bad hoses and replaced them. Still can't seem to get the codes cleared. Should I be doing a smoke test from the other side through in intake manifold also or would the original test expose all of the possible leaks?
Where to smoke test
- Thread starter bgolfer71
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What are those codes? Did you check the pcv valve? Also disconnect the battery for a few minutes to see if the CEL comes back on.
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P0171 and P0171. Too lean. Going to replace that tomorrow and the fuel filter.
Check all the intake hoses from the air filter housing also hoses to VC, clean MAF sensor.