fud24682000 Posted November 27, 2004 Share Posted November 27, 2004 1987 GL, SPFI again. The oil & filter change quieted the HLA noise, but the oil turned black right away, so will do a couple more oil changes while I'm still ahead of the game. My son came up for Thanksgiving and to help with codes, and-- All I could get with key on & engine off, following the book, was 6 flashes, repeated, from the ECM. He suggested starting the engine, and I got 31,33 and 51, but only after the engine was warmed up a bit, and not until I revved it above 3000. At that point the CEL came on, and the codes started flashing for me. After an hour I started the engine again and this time got 32 along with the other codes. Then tried to disconnect plug to throttle sensor to check on 31, thinking I'd see if there was a bad connection, but it would not pull off. Is there a trick to it? I didn't want to pull too hard and wreck something. Wanted to check that one first in case it was the connection, it seemed the easiest one to start with. Ray Mac Link to comment Share on other sites More sharing options...
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