yes i have a 2002 pontiac firehawk and my check engine light came on. It sputters alot and i cant get a full punch out of my vehicle. I took it to autozone, and they said that it was code #1133 which was also called "air fuel mixture valve." They did mention that was a dealer part so i called the dealer and i was told that they have no idea what im talking about. If anyone knows what that code could mean that would be great. Mods on car are long tube headers, custom tune, underdrive pulleys, TNT nitrous system "100shot", borla catylitc converter.
2007-01-16 05:33:51 · 3 answers · asked by blkhawk 2 in Cars & Transportation ➔ Maintenance & Repairs
P1133 HO2S-11 (Bank 1 Sensor 1) Insufficient Switching
Possible Causes Setting Conditions
Air leaks present in the exhaust manifold or the exhaust pipes
Fuel pressure is too high (i.e., causing a rich air fuel mixture)
HO2S may be contaminated (due to improper fuel or silicone)
HO2S signal high or low reference circuit has high resistance
HO2S heater element has failed, or the heater circuit is open
PCM has failed
2007-01-16 05:43:20 · answer #1 · answered by TonynNC 5 · 0⤊ 0⤋
With all those mods there is little room for the stock computer to compensate, I suggest finding someone who can do custom programming of your ECM.
Code p1133
P1133 or P1153 HO2S Insufficient Switching
Translate that as O2 sensor stuck probably due the mods
2007-01-16 05:43:23 · answer #2 · answered by Don W 6 · 1⤊ 0⤋
call another dealership or call auto zone back just to make sure it was named right. I have heard of the part before never had to change one though. Dealerships hire people that does not mean they know what they doing. Really a crying shame to be honest.
2007-01-16 05:48:37 · answer #3 · answered by scott29 2 · 0⤊ 0⤋