Sounds like an o2 sensor crapped the bed.
Sounds like an o2 sensor crapped the bed.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Found a lose plug wire last night fixed it ans still smokes black under throttle. Codes are p0300 and p0131 pre plug change going again now to get them checked again.
03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
86 trans am: lm7 hot cam th350 3500 stall
Getting p0171 now also
03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
86 trans am: lm7 hot cam th350 3500 stall
p0171 is system to lean bank 1 i think.check for vacuum leaks or dirty maf
04 rcsb forged 347
The paper I got said rich condition bank 1 then went on to say the the things it could be. If so it kinda makes sence when I pulled the driverside plugs they were all black and fouled. The pass sisde plugs had a nice light brown.
03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
86 trans am: lm7 hot cam th350 3500 stall
well i got new plug wires plugs and replaced the driverside upstream 02 sensor! i dont have the new wires on yet but with just the new plugs and replacing the sensor it idles smoother than it ever has since ive owned it. gons try to put the plug wires on while im off work 2weeks for christmas. oh and to ensure i dont have any problems with my cats i just ordered some lts and ory.
here are some pics of everything.
03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
86 trans am: lm7 hot cam th350 3500 stall
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