I very recently purchased an engine and had an engine swap done. The engine had 90,000 miles on it. The old engine had constant misfires on bank 1 (1, 3, 5) which I changed the plugs and a few coils. Then I had the swap done. Fast forward to now the engine I had put in is throwing the same codes the old engine did. (P0301, p0303, p0305) the mechanic said he took the fairly new plugs I put in on the old engine out and put them in the engine I had put in. I’m trying to figure out why is the same exact problem occurring on an engine I purchased with 90k miles on it. The old engine had 178,676k miles on it.
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Tuesday, September 17th, 2024 AT 11:03 AM