How screwed am I? (codes included)
Car stutters pretty bad when giving it gas in gear. Idle sounds normal.
P0121- Throttle Position Sensor A Circuit, Range Performance
P0134- O2S Circuit, Bank 1-Sensor, No activity detected
P0155- O2S Heater Circuit, Bank2- Sensor 1, Malfunction
P0300- Random-Multiple Cyl. Misfire Detected
P1637- Generator-L-Terminal Ckt.
Some stuff done to the car fyi:
-TEA Stg. 2.5 5.3's w/Ferrea Stainless 2.055 Int. valves and 1.60 Exh. valves, also all ports have been hand-finished, and each one flows within 3-5 cfm's of each other, heads have Comp 987 springs, titanium retainers and spring locators, new valve seals, and Trick Flow one piece chromoly pushrods
-Comp Custom Ground Renegade cam.....232/236 .580/.580 110 LSA w/2* advance ground in
-LS6 Intake
-TEA ported throttle body
-Kaetech Ported LS6 Oil Pump
-Cloyes Hex-a-Just Single Roller Timing Chain w/new sprockets
-ASP SFI 18.1 Approved Underdrive Crank Pulley
-Kooks 1-3/4" to 1-7/8" Stepped Stainless Steel headers w/3" weld-on collector w/high velocity cone
-3" true duals w/x-pipe and Moroso Spiral Flow mufflers, dumped at rear axle
-Direct-Flo Lid w/K+N filter
-Thunder Racing ported MAF ends
Oh yeah, get the GM O2's, as the Bosch ones are junk, and have been known to give faulty readings, as well as have a shorter life span.
IMO, check your grounds. It almost sounds like you have a loose or corroded ground connection





