2015 Fiesta ST. Stage 2, downpipe, Milltec catback, R-Sport intake, Bigger IC, Quaife diff, New Clutch and flywheel, Big break kit, OZ rally wheels with Nankang NS-2R 205/40/17.
I "raced" a Golf GTI and at 6000rpm or so i let off and get a puff of smoke behind me (ECU protecting the engine i assume). After this the car starts bogging down as soon as i get boost. It bangs in the exhaust like im about to go on the 2 step.
I have changed spark plugs just prior to this but it ran fine for a few trips before this happen. I also pulled them and they look fine. Plugs was from Pumaspeed and pre gapped. After this i changed MAF and MAP sensors, new coils, comp tested all sylinders and they are fine. Also bought new sensor with the turbo with 3 small rubber hoses... Now the fault may happen at higher rpm... We tested fuel pressure and it dosent drop on full wot even when it starts to bungle. A mechanic felt it was like water in the fuel or condensation so i added some treatment, ran the tank empty and added full tank of 98octane...But it still the same...
Culd this be injectors? Any other suggestions to what to do next?
I "raced" a Golf GTI and at 6000rpm or so i let off and get a puff of smoke behind me (ECU protecting the engine i assume). After this the car starts bogging down as soon as i get boost. It bangs in the exhaust like im about to go on the 2 step.
I have changed spark plugs just prior to this but it ran fine for a few trips before this happen. I also pulled them and they look fine. Plugs was from Pumaspeed and pre gapped. After this i changed MAF and MAP sensors, new coils, comp tested all sylinders and they are fine. Also bought new sensor with the turbo with 3 small rubber hoses... Now the fault may happen at higher rpm... We tested fuel pressure and it dosent drop on full wot even when it starts to bungle. A mechanic felt it was like water in the fuel or condensation so i added some treatment, ran the tank empty and added full tank of 98octane...But it still the same...
Culd this be injectors? Any other suggestions to what to do next?
