I have a missfiring problem under heavy accelleration, :confused: and my fuel consumtion is 10mpg, :rant: I have done numeros maitainance jobs recently list below.

 

went through all electrical connectors cleaned them repaired as neccessary,

checked all hoses pipes for tighness leakes and replaced as neccessary, fitted new spark plugs ngk pfr6b-11b,

replaced balance bar o rings,

new fuel filter,

new oil and filter

fitted Blitz sus cone filter,

all exhaust gaskets replaced (exhaust straight through sigle exit, cats gutted)

fitted jwt chip running .95 bar boost using 1.0mm boost jets

 

The car is boosing fine always 0.95 bar. I have reset the ecu too, I have been checking regular for fault codes but none show, until yesterday code 13 engine temp sensor on cold start car strted 30 times with this fault, i done a couple of datalogs if anyone could be so kind as to look for me as i dont really understand it . in the cold start datalog the duty cycle hits 105.66 on heavy accelleration when the missfire starts at around 3500 rpm. thanks James

I cant work out how to put the datalog files on here...can anybody tell me how to do it? please. :confused:

Sounds like a boost leak.