MAXSPL_153 Posted April 1, 2010 Report Share Posted April 1, 2010 wondering if theres a way to richen up my air/fuel mixture on my truck .. 355ci SBC . somewhere i read to unplug the o2 sensor and that would put it into " open loop" whatever that means and richen it up . would this work ? or is there any other way ? note: im trying to do this without spending any $$ thanks guys ! Quote Link to comment Share on other sites More sharing options...
speeddemon0308 Posted April 2, 2010 Report Share Posted April 2, 2010 good luck.. best way is to switch over to a carb. or have some one re-tune it but that costs $$ unplugging the 02 will make it run goofy and your engine light will be on.. and you will have shitty gas millage ( experience on a 350 sbc ) Quote Link to comment Share on other sites More sharing options...
MAXSPL_153 Posted April 2, 2010 Author Report Share Posted April 2, 2010 Well it gets 11 mpg now so it's not a big deal Quote Link to comment Share on other sites More sharing options...
EricM9104 Posted April 2, 2010 Report Share Posted April 2, 2010 So you want to go from 11mpg to 5-8mpg?? :clapping: Quote 2015 Honda Civic LX 4dr | 24k miles Stock H/U and mids/highs Power Acoustik GW3-12" D2 Sub HiFonics BXX1200.1D @ 1ohm Random 2.5^3' dual ported box NVX LOC Stinger wiring throughout 1977 Chevy SWB Cammed 350 Dual exhaust Cheap Wish stereo Link to comment Share on other sites More sharing options...
speeddemon0308 Posted April 2, 2010 Report Share Posted April 2, 2010 do it the right way and have it retuned or toss on a carb. if you run it to rich you will fill your head and piston with carbon and or wash all the oil off your cylinders Quote Link to comment Share on other sites More sharing options...
OrionStang Posted April 2, 2010 Report Share Posted April 2, 2010 PCM tune. Only a couple hundred bucks for a better power/torque curve and increased gas mileage. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
MAXSPL_153 Posted April 2, 2010 Author Report Share Posted April 2, 2010 Ok thanks for the tips , i forgot to mention I'm not wanting to richen it up just for the hell of it , it has some minor work , ie: mild cam , msd , headers, full 3 1/2 " exaust . So it was running VERY lean . To the point it's discoloring my plugs . Quote Link to comment Share on other sites More sharing options...
OrionStang Posted April 2, 2010 Report Share Posted April 2, 2010 Ok thanks for the tips , i forgot to mention I'm not wanting to richen it up just for the hell of it , it has some minor work , ie: mild cam , msd , headers, full 3 1/2 " exaust . So it was running VERY lean . To the point it's discoloring my plugs . I f you got those mods, you MUST get it re-tuned. You will be so much happier. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
speeddemon0308 Posted April 2, 2010 Report Share Posted April 2, 2010 3.5" exhaust is a bit over kill dontcha think? lol Quote Link to comment Share on other sites More sharing options...
MAXSPL_153 Posted April 2, 2010 Author Report Share Posted April 2, 2010 I f you got those mods, you MUST get it re-tuned. You will be so much happier. ok I'll look into that , it's a 1995 so I hope my stock computer is tunable . Any ole race shop should be able to do this ? Quote Link to comment Share on other sites More sharing options...
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