you do have an inline fuel pump too right?

 

I had a vaccum leak on my stang when it was SD ( Lower intake didnt seal 100%)....Which made the car run pig rich I had fuel coming out of the tial pipes rich, sealed the lower better and it ran like a champ......LIL advice throw out them cork gaskets that come with the kit!

 

You cant run a supercharger without a secondary fuel pump, thats the problem

 

you should ungrade your in tank fuel pump to a 190 and you probably need 24# injectors too unless you want to keep the 19's and increase the fuel pressure

 

Code 172 is lack of HO2S-1 switches, system indicates lean bank 1(passenger side only), the fact that you don't have code 176 (lack of HO2S-1 switches, system indicates lean bank 2(driver's side)) showing up also, doesn't necessarily mean that the whole engine is seeing a rich condition. It's something specific to the RH side cilynders only.

It's always recommended to check for any vacuum leaks, these will cause a lean condition in a MAF system, vacuum leaks in a SD system will cause a rich condition b/c it will limit the vacuum to the MAP and will cause the system to calibrate for more fuel in the mixture.

In your case, it could also mean that the RH O2 sensor is 10-7, when the heater element inside the O2 goes fubar, a common failure, it doesn't allow it to reach operating temperature (over 560°F) and causes a problem. If vauum leaks are not present it could be time for the O2 sensor to be replaced. My 2¢.

 

Thanks all for the feedback. Since the vaccume hoses are only 3 feet i will replace them.. Or i can do a quick check with the old choke/carb cleaner. Thank you

 

i read the other day that it is not recommended to run a secondary pump on sc cars?i cant remeber where though

 

problem fixxed! i replaced my O2 sensors with bosch. And its running very powerful! omg i went from 4 cyl speed to a rocket.. Im also having this car for sale $4995.. if anyone wants to buy it let me know cenitus@hotmail.com 602 291 2086 thanks

1994 Mustang GT 5.0 L Procharger 11lbs of boost. P1SC
running mighty smooth