Published on 01-17-2013 11:55 AM
Hello Alexi, I have a 502 Mercury Mag Mpi engine in my Baja boat. I had the engine rebuilt by a shop here in Florida that installed a few upgraded parts. Since I got the boat back from the shop, it seems as though the engine does not want to run or idle well. They said they changed the camshaft and increased the engine compression ratio for enhanced performance. After taking it back to the shop four times to get it running properly, I did a bit of online research and I was told that the computer needs to be adjusted and that they could not perform that operation to my engine at the shop I chose.
What do you recommend since you do a lot of EFI adjustments and tunes?
Brad Williams, Pompano Beach, Florida
Hello Brad.
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