This is why it's best to have a mechanic sort it out. You likely not have a leak around the intake after replacing the IMRC. One of the vacuum lines, intake gaskets etc. Something is leaking.I had codes 1077/1078. Cleaned then replaced imrc. Began throwing 0505/1505 so checked leaks with carb cleaner, cleaned throttle body & iacv, changed pcv then got 1129 code. Changed iacv, worked for 120 miles but code is back. I'm stumoed.
Be helpful if people would post what the codes mean because not even mechanics have the 1000s of codes memorized.
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