can sumone help plz boost trouble

[ad ibiza]

right ive got a mk 3 biza cupra. p-torque stage one rmap cat bck exhaust and forge tip. its had a cambelt kit dun and air flow sensor at mid vw and since ive had it bck the car isnt as quick as before it still boosts but gets higher in the rev range and seems like it hasent got as much power as before.it feels like its 150 bhp agen the battery has been disconnected aswell would that wipe the remap off or i dont no plz help thanks alot

 

[truCido]

No that wouldn't wipe the remap don't worry

Are you far from ptorque might be easier just to get them to take a quick look for you?

 

[ad ibiza]

not that far but they are not open til tuesday any other ideas wot it could b

 

[tstrahonja]

happened to me when my fuel pump was broken..pulled nicely until 3500 rpm and then slowed down pretty much, although it boosted normal...it was a very lean mixture and i had some bad consequences...
so test ur fuel pressure and get a boost gauge...the are sooo cheap and easy to install...

 

[ad ibiza]

thanks mate ill get fuel pump looked at and get a boost gauge the wkend thanks for the info much appreciated