boostedgtp Posted July 29, 2008 Report Share Posted July 29, 2008 I have a 2000 blazer with the 4.3 and it has a code for bank 1 too lean. I have sprayed the top of the motor with starting fluid and found no vac leaks. All 3 O2 sensors appear to be working as does the Maf. No exhaust leaks. The truck has +25 LTFT for B1 and +18 LTFT for B2 while driving. Could there be a vac leak under the cover for the "spider injection"? Quote Link to comment Share on other sites More sharing options...
AJ Posted July 29, 2008 Report Share Posted July 29, 2008 fuel pressure? fuel volume? kinda suprised that you didn't set both banks yet with +18. Quote Link to comment Share on other sites More sharing options...
boostedgtp Posted July 29, 2008 Author Report Share Posted July 29, 2008 I check fuel pressure last week and it was in spec ( dont remember what is was). I havent done a volume test. Yeah for some reason it only sets the right bank code. The truck has never got plugs or wires or a fuel filter. I was looking a live data and saw no misfires. Im going to get a fuel filter for it this weekend but I was talking to a chevy tech and he said GM has a gasket kit with a new cover piece for the fuel injectors that can leak vacume but I used a can of starting fluid on it with no signs. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted July 29, 2008 Report Share Posted July 29, 2008 volume!..those are bad about injectors! Quote Link to comment Share on other sites More sharing options...
boostedgtp Posted July 29, 2008 Author Report Share Posted July 29, 2008 dumb question, how can u check volume with this style of injection. Quote Link to comment Share on other sites More sharing options...
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