I have a diablo sport predator on my 01 z28 I ran a diagnostic on it since it has an SES light now let me tell you my upgrades slp flowpac TSP true duals and TSP 1 7/8 headers.Now the code that it gives me is p1133 and p1153 now i disabled the rear sensor and I even went as far as to replace my front o2 sensor with Bosch 13444 oxygen sensor but the light still comes on. Ran a real time data on the sensors and there switching just fine dont know why the light keeps coming on and i believe its runnung rich

 

lean it out ????

 

Both codes are insufficient switching, and are neither rich nor lean codes. It is from the distance they're from the engine now, due to the headers.
Simply put they are not switching enough.

Easiest fix is probably installing 01/02 Corvette downstream 02s in the upstream bungs. I believe they will plug right into your harness. The reason this will probably fix it is the Vette downstream 02s have a higher wattage heater, tend to stay hotter, and therefore switch a little quicker. Sometimes you have to turn the codes off though. Sometimes this works, sometimes not. Certain headers are worse than others for this. Won't name any names.

 

which ones are the corvette bungs???

 

Can you find out the part number

 

last question is should i get Bosch?? are they reliable

 

Not Corvette bungs, Corvette downstream 02 sensors. 01/02 years. Sorry, I don't have part numbers. Put them in your upstream 02 bungs.
Spend the money and buy GM ones.

 

man thank u alot imma look it up thanks alot

 

well no code yet imma change the ltft because i checked it when i was using the sensor today i just got them today so i checked it and it was at 13.28. Im going to change the injector slope on the predator -13 and hopefuly it will adjust. Hopefully i wont get the error

 

Part number for o2 sensor Bosch 13111.

 

thank u caribe i got it

 

Well change it to the corvette sensor clear the light came back the next day any other suggestions???

 

Turn the codes off. Sometimes the Corvette 02s work, sometimes not.