o2 sensor or intake gasket, if it's intake gaskets you'll notice it throwing lean codes and running big time rich. o2 sensor will do the same but its usually a lot more noticeable when its an intake gasket. So a little drop in your fuel mileage it o2, huge drop its gaskets
Last edited by Frenchy; 02-06-2010 at 06:45 PM.
2006 SilveradoLittle Black Bitch
Yesterday when i had the truck in the shop it was throwing black LANGUAGE!!!!!! out the exaught pipes when i would rev it a little, but im not sure about the fuel mileage cause i changed the superchips selection from mileage save back to stock..
Last edited by DamnYankee; 02-28-2010 at 06:31 PM.
Intake gaskets. That things pig rich
2006 SilveradoLittle Black Bitch
I tried the brake cleaner around the intake and it didnt' make a bit of difference, could it still be the intake gasket?
you have a bad 02 sensor. replace both if you can afford to
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
Originally Posted by the boy
whats your short term and long term fuel trims look like? and watch the 02 sensors to see if they are changing
Last edited by DamnYankee; 02-28-2010 at 06:32 PM.
05 EXT. CAB SILVERADO 5.3L-volant cai,P&P TB,cut-out,160*,tune,vette servo & accum. 4.10s with g80
Mine actually goes dead at idle, especially if coasting in neutral. It surges at idle, and has thrown the multiple misfire about 3 weeks ago. Gonna change 02 sensors and see what happens
04 Silverado Z-71 Extended Cab
Magnaflow, 10.4 TV 50 wires, tr-55ix, Synthetics, HID's, JL audio, 33.5", leveling kit, tuned, CAI, vette servo, cam, valve job, pacesetter. 9.3@77.5 and 14.5@93.4
06 2wd
custom cam, tune, 3.73's, servo, HID's, 10.4mm wires, long-tubes, CAI, magnaflow, 2.5" shackles, Circle-D 3200, UD, JL Audio 4.1, Alpine 5ch
its now showing code P0134 O2 sensor bank 1 not responding. which O2 sensor is bank 1????
I'm facing the same problem right now. I just replaced my plugs wires are on the way to me. Going to chang my fuel filter and get some injector cleaner and see what happens. I have spare coils packs so I just might change them as well and see what happens.
-RJ60'-2.485
1/8-10.324@69.82
1/4-15.88@89.10
Drivers Side
04 SS; Gibson Custom Exhaust
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2K2 Silverado