Hi all that damn Jag is driving me crazy again. Had to ported rebuilt supercharger removed so I could have a bearing replaced and after the car was put back together I get a p0175 code and no others. Changed MAP and both MAF sensors no change. Have reset and cleared code 5x after about 40 miles it returns. Car seems to have a random stutter when driving, accelerates hard. Injectors were replaced about 2k ago as regular maintenance. on a autel diagnostic test it showed the map at -30 volts so I replaced it. Showed no misfires short term trim bank 1 14.06 bank 2 11.72 . My fuel rail pressure was 9880 kpa likely the tune, Didn't see anything else array. Is this a bad injector? 02 sensor is there ways to rule either out. Love this car been through alot but it driving me crazy. Thank you for any insight

 

Did he replace the gaskets, you may have a vacuum leak ,or if he removed the snout the the sealer he used may have failed

 

yes, to both questions wouldn't the snout equal a issue on both banks? and wouldn't a leak make me lean? have two shops trying to guide this and don't seem to be getting anywhere

ty

 

It's the opposite of lean so can't really be an air leak.

The jag DTC PDF is worth checking as it lists further possible causes, such as sensors which may now not be working right.

 

check your throttle plate the position its in

 

not sure what you mean Dennis