Naughty scooby!!
 

Hi guys. can anyone shed some light on this. i have just recently bought a wrx sti 1997 import. it has had a few mods done (ported head, lightened flywheel ,exhaust etc.. it has apexi power fc ecu fitted also. it did have remaps etc but previous owner had erased these. (quite a green owner) the car does not run that well. it judders backfires and is hunting and stallint alot. etc ..!! what could it be.... wat do i need to do?????? if it needs work to remap or tune can anyone recommend someone :notworking:

Sounds like a vacuum leak, had this happen to me a few times due to old vacum hoses splitting reaplace all of them and not a problem since

you think that will sort it?? i thought bthe apexi might be playing up!! it look at pipes to day .. cheers bud

Its worth a look because thats a cheap option compared to someone looking at the map

why did the previous owner erase a remap?? this could potentially mean your car is running on a base map or similiar

suggest you get the map checked/re-done asap

i believe he got it as a p/x and played around with the controller and ersaed data that way... im not driving it till its fixed.. one thing i will say is that i put the standard ecu back in and done a reset and the car was still acting the same if this means anything ..!!!

is there anyone local to worthing that i can pop over /round to to confirm wat is going on!!! as i dont have a scooby!!! (pun intended!!!! ha!)

Simon jgm is the man to ask on recommended services for a remap:doubleup:

If you changed the ecu and reset it and is still acting the same then its not the ecu it would be something todo with the engine mate :(

Or possibly a sensor

This sound like what my scoob was doing last year hunting,stalling running lumpy back firing,very sluggish,wouldnt pick up,so after changing near on every sensor (BradWRX) had a look at it for me,put his MAF on and it sorted the problem...:doubleup:

cheers guys and girls ...now...... where do i get maf or maf sensor!!!