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I know 2000 is supposed to have 26lb injectors but my stock tune file said they are 28lb. So I looked at the part number on the side of them and I see two sets of numbers. One is 1255894 the other is 0280155890 I cant find the part numbers on GM parts direct or anything. What size injectors do I have?
Thanks Patrick
I have a copy of the fiche but there may be a problem. The fiche only lists an injector kit which includes a clip and a seal. It does not list the injector alone. It also shows 99 and 2000 being the same but I thought 2000 was unique. The part number for the 99-00 kit is 12456154. Can't offer you much help.
I know 2000 is supposed to have 26lb injectors but my stock tune file said they are 28lb. So I looked at the part number on the side of them and I see two sets of numbers. One is 1255894 the other is 0280155890 I cant find the part numbers on GM parts direct or anything. What size injectors do I have?
Thanks Patrick
My injectors have the same numbers on them. Well, except for the first one, I think you left one of the 5's out (12555894).
My injectors are 26#. All the stock 2000 files I have seen have 26# injectors. It sounds like your tuner may have altered your IFR tables to get a desired AFR, which is really not the correct way to do that.